On the road of national rejuvenation, move forward bravely – on behalf of the members to promote the Chinese path to modernization

Xinhua News Agency, Beijing, March 7 Title: On the road of national rejuvenation, we will move forward bravely – on behalf of the members to promote the Chinese path to modernization

Xinhua News Agency reporter

This is a new journey in pursuit of the future –

In October 2022, the 20th National Congress of the Communist Party of China drew a grand blueprint for the Chinese path to modernization to comprehensively promote the great rejuvenation of the Chinese nation, and hundreds of millions of people went on an expedition full of glory and dreams.

It’s a hopeful departure.

In the spring and March of 2023, the first National Two Sessions after the 20th National Congress of the Communist Party of China was successfully held, and arrangements were made for the work in the first year of building a modern socialist country in an all-round way.

The road trip is magnificent and boundless.

Under the strong leadership of the Party Central Committee with the supreme leader as the core, the whole Party and the people of all ethnic groups in the country are confident, self-improvement, upright and innovative, work hard and move forward bravely, and strive to create a brighter tomorrow on the road of national rejuvenation!

Take advantage of the momentum and strengthen confidence to open a new journey of Chinese path to modernization

On March 6, at the time of the start of the sting, all things are in spring.

The General Secretary of the Supreme Leader came to the Juying Hall of Beijing Friendship Hotel to cordially visit the members of the CPPCC and the Federation of Industry and Commerce who participated in the CPPCC meeting and attended the joint organization meeting to listen to everyone’s opinions and suggestions.

After five very unusual and extraordinary years, China’s development stands at a higher historical starting point.

The words of the General Secretary of the Supreme Leader were firm: "We adhere to the general tone of seeking progress while maintaining stability, face difficulties, deal with them calmly, do not believe in evil, do not fear pressure, and do not take refuge. The average annual GDP growth rate is 5.2%. We will win the tough battle of poverty reduction as scheduled, build a moderately prosperous society in an all-round way, achieve the first century goal, promote the cause of the party and the country to achieve major achievements that attract worldwide attention, and promote our country to embark on a new journey of building a modern socialist country in an all-round way."

Time opens a new writing; development opens a new chapter.

A clearer and broader vision points to the broad road to building a strong country and rejuvenating the nation –

The report of the 20th National Congress of the Communist Party of China pointed out that socialist modernization will be basically realized from 2020 to 2035; from 2035 to the middle of this century, our country will be built into a prosperous, strong, democratic, civilized, harmonious and beautiful socialist modernization power. The two-step strategic arrangement makes the goal of the second century more clear and complete.

"The blueprint has been drawn, and how to spread it will determine whether the goal can be achieved as scheduled." Representative Ding Yi, Secretary of the Party Committee and Chairperson of China Baowu Masteel Group, said that in recent years, we have been more actively integrated into the integrated development of the Yangtze River Delta, with a larger development pattern and more stamina. Revenue has increased from more than 120 billion yuan in 2020 to more than 220 billion yuan last year.

Open this year’s government work report, GDP growth of about 5%, about 12 million new jobs in urban areas, consumer prices rose by about 3%… In the opening year, a series of deployments guided the development direction.

"The economic growth target of around 5% is in line with our country’s economic growth potential at this stage. In the short term, it is conducive to sending positive signals to the market, boosting confidence and guiding expectations. In the long run, creating conditions for achieving the medium and long-term growth target of 2035 will help to make a good start for building a modern socialist country in an all-round way," said Gong Liutang, vice-president of Beijing Technology and Business University.

More specific characteristics and advantages, highlighting the rich connotation of the Chinese path to modernization –

The Chinese path to modernization is a modernization of a huge population scale, a modernization of common prosperity for all the people, a modernization of material civilization and spiritual civilization in harmony, a modernization of harmonious coexistence between man and nature, and a modernization of peaceful development.

"The 20th National Congress of the Communist Party of China report further clarified the characteristics of the Chinese path to modernization, put forward nine essential requirements and major principles that must be firmly grasped. These initially constructed the theoretical system of Chinese path to modernization, deepened our understanding of the rich connotation of Chinese path to modernization, and made Chinese path to modernization clearer, more scientific, and more feasible." Zhou Lian, a professor at the Guanghua School of Management at Peking University, said.

"In the past ten years, Changzhou’s economy has doubled and PM2.5 concentrations have halved, which makes us more confident in building a modernization of harmonious coexistence between man and nature." The new journey will better coordinate the effective improvement of quality and the reasonable growth of quantity, and depict a new picture of Changzhou with "clear water and green coast, evergreen air, abundant pure land, and harmonious fish and water."

This is the Spring and Autumn Yancheng ruins and Wujin urban area taken in Changzhou City, Jiangsu Province (photo taken on August 6, 2022, drone photo). Photo by Xinhua News Agency reporter Yang Lei

Based on the Chinese land and rooted in Chinese culture, the Chinese path to modernization is a modernization with Chinese characteristics, Chinese style and Chinese style.

This year’s Spring Festival, on the basis of retaining the original ecological artistic characteristics, the large-scale music and dance poetry painting "Mukam Impression", which introduces modern aesthetic concepts and creative techniques, is difficult to obtain once it is staged.

"The excellent traditional culture of the Chinese nation is an important foundation for building a strong cultural country and enhancing cultural self-confidence. It is from the perspective of meeting the new needs of people’s spiritual life that we allow traditional art to rejuvenate through innovation." After more than 30 years of studying Muqam art, the head of the Muqam Art Troupe of Xinjiang Art Theater, Dilixia Parhati, said that this year, he put forward suggestions on strengthening the protection of intangible cultural heritage, so that more people can pay attention to and care about excellent traditional culture, and build a solid cultural foundation for the Chinese path to modernization.

Actors perform "Impression of Mukam" at the Xinjiang Mukam Art Troupe Theater (photo taken on August 3, 2017). Photo by Xinhua News Agency reporter Wang Fei

Creating a new form of human civilization expands the path options for developing countries to modernize –

On the afternoon of March 4, at the first session of the 14th National Committee of the Chinese People’s Political Consultative Conference, member Dai Bin, president of the China Tourism Academy, described his dream as follows:

"I have a travel dream. People from different regions, different skin colors, and different civilizations interact with each other on this blue planet, enjoying beautiful scenery and experiencing a better life during travel, and injecting confidence and vitality into building a community with a shared future for mankind."

The Chinese path to modernization has created a new form of human civilization, broken the myth of "modernization = Westernization", and established a model of independent modernization.

"The practice of ten years of high-quality development in the new era has proved that China can embark on a path of modernization that is different from that of the West and adapts to local conditions." Yang Chengcheng, chief economist of the Shenwan Hongyuan Group Securities Research Institute, said that only by truly leveraging its own advantages and fully respecting the law of development can it be truly smooth and smooth, and at the same time it can be used as a reference for other economies.

A vast picture scroll, spreading out thousands of weather.

After a century of struggle, our party has led the people to successfully walk the Chinese path to modernization, and will surely lead the people to open up a new world on the Chinese path to modernization on the new journey.

Build a solid foundation and promote the Chinese path to modernization with high-quality development

On the afternoon of March 5, the East Hall of the Great Hall of the People was brightly lit and warm.

"High-quality development is the top priority for building a modern socialist country in an all-round way."

The important speech of the General Secretary of the Supreme Leader when he participated in the deliberation of the Jiangsu delegation pointed out the direction for fully implementing the spirit of the 20th National Congress of the Communist Party of China and solidly promoting the Chinese path to modernization with high-quality development.

The development of the new era and the new stage must implement the new development concept and must be of high quality.

The results of the seventh national census show that the population of our country has reached 1.41 billion, accounting for about 18% of the total global population.

1.40 billion population as a whole is moving into a modern society, the scale exceeds the sum of the population of the existing developed countries, and the difficulty and complexity are unprecedented. High-quality development is the solution and the top priority.

From an international perspective, the world has entered a new period of turbulent change, with a new round of scientific and technological revolution and industrial transformation in-depth development, but the number of uncertain and unpredictable factors has increased.

Domestically, our country has many advantages and conditions for continued development, but the task of reform, development and stability is even more arduous.

Bai Zhongen, dean of the School of Economics and Management of Tsinghua University, said that our country’s development has achieved world-renowned achievements, but we still need to see the gap with developed countries and the constraints of population, resources and environment. We must fully implement the new development concept, accelerate the construction of a new development pattern, and build a solid foundation for the Chinese path to modernization in high-quality development.

Accelerating the achievement of high-level technological self-reliance is the only way to promote high-quality development.

Under the warm spring sun, the fusion reactor project park in the Hefei Large Scientific Installation Concentration Area, which has been opened, is a busy scene. From the sky, this base looks like a "phoenix spreading its wings", and it holds the clean energy dream of human beings to ignite the lamp of fusion.

At the Hefei Institute of Physical Sciences of the Chinese Academy of Sciences, workers upgrade the all-superconducting tokamak nuclear fusion experimental device (EAST) known as the "artificial sun" (April 13, 2021). Xinhua News Agency reporter Liu Junxi, photo

Luo Yunfeng, mayor of Hefei City, Anhui Province, said that as the second comprehensive national science center approved for construction, Hefei will unswervingly serve to ensure the construction of national strategic scientific and technological strength, and work together to build a "Technology University Silicon Valley" linking high-end innovation elements around the world.

This is the digital wheel smart factory of China Baowu Group Masteel Rail Transportation Materials Technology Co., Ltd., located in Ma’anshan City, Anhui Province (photo taken on November 8, 2022). Photo by Liu Junxi, reporter of Xinhua News Agency

Breeding new opportunities in a crisis and opening a new situation in a changing situation.

The report of the 20th National Congress of the Communist Party of China pointed out that education, science and technology, and talents are the basic and strategic support for building a modern socialist country in an all-round way.

"The Southern University of Science and Technology has only been established for 12 years, but it has achieved rapid development, produced a batch of original scientific research results, and contributed new strength to high-quality development." Representative Xue Qikun, an academician of the Chinese Academy of Sciences and president of the Southern University of Science and Technology, said that China is fully committed to building an innovative country, providing a broader stage for scientific researchers.

Accelerating the construction of a new development pattern is a strategic basis point for promoting high-quality development.

Lin Yifu, director of the Institute of New Structural Economics at Peking University, said that the huge population size and the continuous growth of national income have formed a huge domestic demand; the infrastructure building achievements have been remarkable, and the transportation facilities have been continuously improved, which has provided convenience for the formation of a unified large market. At the same time as the development of the commodity market, the production factor market has developed rapidly. "This kind of super-large-scale domestic market with comprehensive development has become an important foundation for our country’s economy to achieve high-quality development."

To build a new development pattern, we must integrate the implementation of the strategy of expanding domestic demand with the deepening of supply-side structural reform, and accelerate the construction of a modern industrial system.

On January 31, workers processed electronic components in the production workshop of an electronic technology company in the industrial park of Qianjiang District, Chongqing. Xinhua News Agency (photo by Yang Min)

As an important modern manufacturing base in the country, Chongqing has now formed a "multi-point support" industrial pattern. "We will make every effort to accelerate the high-end, intelligent and green transformation of traditional pillar industries such as electronics, automobiles and motorcycles, equipment manufacturing, consumer goods and materials, and strive to reach 28% of GDP in the city’s manufacturing added value by 2027," said Lan Qinghua, director of the Chongqing Economic and Information Commission.

Advancing agricultural modernization is an inevitable requirement for achieving high-quality development.

"The four seasons are beautiful and the scenery is good, and the change of scenery is the big bay…" On the farmers’ stage in Dawan Village, Huashi Township, Jinzhai County, Anhui Province, in the hinterland of the Dabie Mountains, the villagers’ self-directed and self-performed Allegro – "Writing a New Chapter of Rural Revitalization" tells the great change of this small mountain village from a deeply impoverished village to a key village in rural tourism across the country.

Villagers in Dawan Village, Jinzhai County, Anhui Province pick tea leaves in an ecological tea garden (photo taken on May 11, 2022). Xinhua News Agency reporter Du Yu

Yu Jing, the first secretary of the general party branch of Dawan Village, said that the tourist road into the village is now being rebuilt and expanded. Relying on the ecological resources of green waters and green mountains, the whole village has gradually walked out of a characteristic development path of growing tea in the mountains, welcoming guests at home, and processing agricultural products. "On the road to rural revitalization, everyone has hope and strength."

The report of the 20th National Congress of the Communist Party of China pointed out that the most arduous task of building a modern socialist country in an all-round way remains in the countryside.

Strictly adhere to the red line of cultivated land, effectively ensure the stable and safe supply of grain and important agricultural products; regard industrial revitalization as the top priority of rural revitalization, and continuously expand the channels for farmers to increase income and become rich; optimize the layout planning of towns and villages, and accelerate the construction of livable, suitable industries and beautiful villages… On the new journey, a series of new plans continue to add impetus and vitality to the development of agriculture and rural areas.

People’s well-being is the ultimate goal of promoting high-quality development.

Villagers in Tangdi Village, Lizhu Town, Keqiao District, Shaoxing City, Zhejiang Province take care of orchids (photo taken on April 25, 2018). Xinhua News Agency reporter Han Chuanhao, photo taken

The orchid base in Tangdi Village, Lizhu Town, Keqiao District, Shaoxing City, Zhejiang Province, is fragrant and full of tourists who come to enjoy the flowers, visit the intangible cultural heritage flower carvings and learn the art of escorting flowers. Last year, the per capita income of the villagers here exceeded 120,000 yuan.

"Realizing common prosperity for all people is one of the essential requirements of the Chinese path to modernization. Being in the demonstration zone of common prosperity, we deeply feel that we must take the realization of the people’s yearning for a better life as the starting point and end point," said Liu Jianming, the party secretary of Tangdi Village.

"The difficulty of modernization to achieve common prosperity for all people lies in the countryside, and the focus of modernization to achieve the harmony of material civilization and spiritual civilization is still in the countryside." Representative Wu Huifang, party secretary of Yonglian Village, Zhangjiagang City, Jiangsu Province, said that it is not only necessary to promote production development, but also to promote rural culture, build livable and suitable industries and beautiful villages, so that farmers can keep up with the pace of the times and share the fruits of development.

Residents’ income growth is basically synchronized with economic growth, strengthening the security of elderly care services, and solving housing problems such as new citizens and young people… The government work report, plan report, and budget report show more measures for people’s livelihood, echoing the people’s yearning for a better life.

Open up a broader development space in high-quality development, and continuously transform the development results into the people’s sense of gain, happiness, and security… A picture of the Chinese path to modernization is full of expectations.

Together, the bright future of the Chinese path to modernization

Large tower cranes waving giant arms, construction machinery rumbling, construction sites and parks in full swing… Jiangsu Nantong has started 99 major industrial projects over 100 million yuan and 79 key infrastructure projects in the first quarter of this year, striving to start a new game with a "running" attitude.

"We need to speed up the start, and we need to be the first to start," said Wu Xinming, the mayor of Nantong. Although there are many challenges ahead, Nantong is ushering in a new round of golden opportunities and standing on a new trend of leapfrog development. "We will seize the opportunity, amplify the advantage and seek breakthroughs with a strong sense of historical urgency."

Advancing the Chinese path to modernization is a great and arduous undertaking, and the next five years will be a critical period for building a modern socialist country in an all-round way.

On the new journey, we must uphold and improve the party’s overall leadership –

Adhering to the leadership of the Communist Party of China is the most distinctive feature and the most prominent advantage of the Chinese path to modernization.

The great changes in the past ten years in the new era have eloquently proved that the "two certainties" are the foundation of confidence in doing all work well, the source of victory in overcoming all difficulties and obstacles, and the greatest certainty, the greatest confidence, and the greatest guarantee for dealing with all uncertainties.

This is the metallurgical equipment production workshop of MCC Saidi Equipment Co., Ltd., located in Jiangjin District, Chongqing (photo taken on September 6, 2021). Photo by Xinhua News Agency reporter Liu Gwan

"Party leadership is directly related to the fundamental direction, future and fate, and ultimate success or failure of the Chinese path to modernization. It is the fundamental reason for promoting the Chinese path to modernization. Only by unswervingly adhering to the party’s leadership can the Chinese path to modernization have a bright future and prosper," said Cao Qingyao, deputy director of the Chongqing Municipal Party Committee’s Propaganda Department.

On March 1, in the welding workshop of Great Wall Motor’s Chongqing Yongchuan production base, an intelligent welding robot was performing welding operations. Xinhua News Agency reporter, Huang Wei, photo

On the new journey, we must unswervingly deepen reform and opening up in an all-round way –

Reform and opening up is the source of vitality for contemporary China’s economic and social development.

Effectively implement the "two unswervingly", deepen the reform of state-owned assets and state-owned enterprises, protect the property rights of private enterprises and the rights and interests of entrepreneurs in accordance with the law; make greater efforts to attract and utilize foreign capital, expand market access, and implement the national treatment of foreign-funded enterprises… This year’s National Two Sessions released a positive signal of "reform will not stop, opening up will not stop".

"In the process of promoting the Chinese path to modernization, private enterprises have great potential!" Zeng Yuqun, chairperson of Ningde Times New Energy Technology joint stock company, said that through reform and innovation to improve the system, optimize the environment, and solve problems for private enterprises, let us have the confidence to go light and go to the Chinese path to modernization.

We will continue to expand our high-level opening up to the outside world and expand new development space through in-depth participation in global industrial division and cooperation.

Thousands of miles away from the offshore fishing base in Mauritania, West Africa, containers loaded with the fierce catch of the Atlantic Ocean set off from here, crossed the ocean, and docked at the Mawei Port in Fujian. After that, the processed seafood appeared all over the country and in Brazil, Japan and other countries.

"When I was fishing on a small sampan with my grandfather more than 50 years ago, I never imagined that one day I would be able to build China’s overseas distant-water fishing base in Africa, and the dream of building big ships, exploring the deep sea and catching big fish will become a reality." Representative Lan Pingyong, chairperson of Hongdong Fishery joint stock company in Fuzhou City, Fujian Province, said that he will better integrate his own development into the new development pattern and contribute to the joint construction of the "Belt and Road Initiative".

On the new journey, we must always maintain a high-spirited and enterprising mental state –

Transforming the blueprint into reality is a new long march.

"In the coming period, the risks and challenges we face will only become more and more severe. Only when all the people think together, work together, work together, have the courage to fight and be good at fighting, can we continue to win new and greater victories."

When visiting the members of the CPPCC and the Federation of Industry and Commerce who participated in the CPPCC meeting, the Supreme Leader’s General Secretary’s sonorous and powerful words inspired people to forge ahead.

On the way forward, unity is strength, and we strive to create the future.

"Today’s China is full of vitality, and tomorrow’s China strives to achieve its dreams. We are full of pride and down-to-earth, and we will go to the new journey of the Chinese path to modernization. We will use a hundredfold effort to help the great cause of the rejuvenation of the Chinese nation." Sun Dongsheng, vice chairperson of the Central Committee of the Democratic Construction Committee, said firmly.

On the way forward, whether the wind is high or the waves are rough, the people will always be the most solid support and the strongest confidence to promote the Chinese path to modernization.

Trainees learn to paint thangkas at the ethnic handicraft training base in Karma Township, Karuo District, Changdu City, Tibet (photo taken on October 3, 2020). Photo by Xinhua News Agency reporter Jigme Duoji

"We believe that as long as we work hard on the road to comprehensively promote rural revitalization, our village will definitely achieve the goal of common prosperity." Representative Qi De, the party branch secretary of Polongtang Village, Jiangmian Township, Baqing County, Tibet, said that after returning, we will work harder than before to make the whole village live better.

Every step forward taken by hundreds of millions of Chinese sons and daughters will converge into the historical torrent of the Chinese nation’s high-spirited progress.

In this beautiful spring, let us unite more closely around the Party Central Committee with the supreme leader as the core, move towards a brighter future, and move towards the grand goal of realizing the Chinese path to modernization! (Reporters Han Jie, Chen Gang, Yang Yuhua, He Zongyu, Gao Jing, Ye Haoming)

Poster Design: Jiang Zihan, Sun Yao

Noise Dongfeng Nissan-Xuanyi

Home of the car

    In the noise test, Sylphy is better than Yinglang on the whole, except when cruising at 120km/h, mainly because the noise and vibration control of Sylphy’s four-cylinder engine is better than Yinglang’s three-cylinder engine. When Yinglang’s speed exceeds 2500rpm, obvious noise will be transmitted to the car, while Sylphy is relatively better, and the driving speed is also lower than Sylphy’s CVT gearbox.

Excerpt from "Practical Duel Yinglang VS Sylphy Comparative Test"

Nearly 300 people were killed in Israeli air strikes in Gaza, and the situation in the Middle East deteriorated sharply (Figure)


Smoke billowed from the Israeli air raid on Gaza.



Israeli air strikes on Gaza have angered people in Arab countries.


  BEIJING, Dec. 29 (Xinhua)-According to comprehensive reports, Israel has carried out continuous air strikes against the Gaza. Up to now, the attacks have killed 298 people and injured more than 950 people, including both Hamas militants and ordinary Palestinians. It is reported that this is the deadliest conflict in Gaza since the Middle East War in 1967.


  The Israeli side hinted that it did not rule out escalating the operation and launching a ground attack, and it has begun to increase its troops; Palestinian militant group Hamas has called for suicide attacks. Hamas stepped up its long-range rocket launcher to fight back, reaching 30 kilometers deep into Israel, with the longest range ever.


  Israel launched several air raids on Gaza in the past two days in retaliation for the Palestinian attacks in recent days, while Hamas repeatedly fired rockets and mortars in response, claiming that it had fired two long-range "hail-type" rockets at Ashdod, a southern Israeli city 30 kilometers from Gaza. Another rocket was fired at Javne, a small town 30 kilometers away from Gaza, which was the longest range of Hamas’s attack.


  The attack took place on the Jewish Sabbath, which was unexpected. On the other hand, analysts and the media have long expected that Israeli military actions against the Gaza Strip will be inevitable before the Israeli parliamentary elections in February next year.


  Israel: carefully planned air strikes, army ready to attack


  From the deep-seated reasons, the attack on the Gaza Strip was the result of the struggle between Israeli political forces before the election. Although they know that there are risks in using force, they still judge that attacking is a more favorable choice for themselves. From the standpoint of the ruling party, this is forced by the election situation. As the air strikes launched by Israel on the Gaza Strip entered the second day, the Israeli Cabinet passed a decision on the 28th to call some reservists.


  Israeli Foreign Minister Livni said that the operation has been "very successful" so far. She said that Israel is determined to change the reality in Gaza, so that the Israeli public can get rid of the Palestinian rocket attack for four years forever.


  Israeli local media reported that the Israeli air raid had destroyed 230 targets in the Gaza, and 170 targets were destroyed in the first day. In fact, after a year of intelligence collection and careful deployment, it showed that the use of force was by no means an "improvisation". At present, the Israeli army is mobilizing tanks and ground troops to assemble near Gaza, ready to attack at any time.


  Cabinet Minister Yitzhak herzog said: "We may not want to conquer Gaza, but of course we are considering all options."


  Hamas: Resolutely will not surrender and plan to launch a "jihad."


  Hamas said it would never surrender with a white flag, and warned that it would pay a heavy price if the Israelis invaded Gaza. "All options are on the table, including rocket attacks and suicide bombings," Hamas spokesman Fawaz Bahome said.


  According to Iranian media reports, Hamas’s foreign propaganda officials even said that "the only way to fight back against Israeli crimes is to launch jihad and uprising". It is reported that Hamas’s strength has not been hit hard by air strikes.


  The Israeli police have completely cancelled their vacation and issued a high-level terrorist attack alert on the territory to prevent Hamas from retaliating. According to the information held by the Israeli security department, after the Israeli military attacked Gaza, at least 10 terrorist attacks were reported.

News of BMW i4 price reduction in Jinhua area! The reserve price is 327,500, and the quantity is limited.

[car home Jinhua Preferential Promotion Channel] Recently, there has been a big price reduction in Jinhua, with the highest preferential margin reaching 132,400, and the lowest starting price has dropped to 327,500. For friends who are interested in buying BMW i4, this is undoubtedly an excellent time to buy a car. Please click "Check the car price" in the quotation form to get a higher discount.

金华地区宝马i4降价消息!底价32.75万,数量有限

BMW i4 adopts a dynamic and fashionable design language, and the front part adopts a classic kidney-shaped air intake grille design, but it is different from the traditional fuel vehicle, and it adopts a closed design, which shows its identity as an electric vehicle. Sharp LED headlights are equipped on both sides of the air intake grille, which enhances the scientific sense and visual effect of the whole vehicle. The whole body lines are smooth, creating a dynamic style, and also embodying BMW’s consistent sports genes. The overall design style of BMW i4 is fashionable and atmospheric, which shows its unique charm as a luxury electric vehicle.

金华地区宝马i4降价消息!底价32.75万,数量有限

The body size of BMW i4 is 4785*1852*1455mm, the wheelbase is 2856mm, the front tread is 1601mm and the rear tread is 1630mm. Its side lines are smooth and dynamic, with 18-inch rims, which are 245/45 R18 in front of tyre size and 255/45 R18 in rear of tyre size, creating a unique sports style.

金华地区宝马i4降价消息!底价32.75万,数量有限

The interior design of BMW i4 is mainly luxurious and technological, and the steering wheel is made of leather, which provides manual up-and-down and back-and-forth adjustment functions. The center console is equipped with a 14.9-inch HD screen, which integrates the functions of multimedia system, navigation and telephone, and supports voice recognition control. In terms of seats, a variety of material choices are provided, including imitation leather, genuine leather and leather /Alcantara mix and match. The main and auxiliary seats have heating, height and backrest adjustment functions, and are also equipped with electric seat memory function, which is convenient for drivers to use. In addition, the front row is also equipped with wireless charging function and multiple USB and Type-C interfaces to facilitate charging and data transmission of in-vehicle equipment.

金华地区宝马i4降价消息!底价32.75万,数量有限

BMW i4 is equipped with a powerful motor with a maximum power of 210 kW and a maximum torque of 400 Nm, which provides ample power output and excellent acceleration performance for the vehicle.

The owner of car home commented: "The configuration parameters of Series I’s 3, 5 and X3 are almost the same, except that the shell has been changed. I want to buy I4 for more than 100,000 yuan. Of course, it is still imported, and there is no need to do such a thing as buying it home. At first glance, the big nostrils are not mediocre. When I drive out, people are guessing at 600,000. I am sorry. "

Mercedes-Benz EQE has been used for more than one year, and the battery has failed. The 96-degree battery pack can only charge 42 degrees of electricity.

Peninsula network August 14 th Recently, Mr. Sheng, a citizen, reported to the tide listening column of Peninsula Network (0532-80889235) that he spent 450,000 yuan on a Mercedes-Benz EQE in Qingdao Lixingxing Star Automobile Co., Ltd., and found that there was a problem in battery charging during use. The cruising range is greatly reduced. At first, it can charge 96 kWh when fully charged, but now it can only charge 42 kWh when fully charged. There have also been cases where the reversing function has failed. In this regard, the staff of the 4S shop said that after technical testing, the battery was faulty, and the battery replacement process was already being taken to the customer, and both parties had reached an agreement.

At the end of June 2023, Mr. Sheng took a fancy to a Mercedes-Benz EQE in Qingdao Lixingxing Star Automobile Co., Ltd. "At that time, the market quoted 550,000 yuan, and the 4S shop gave a discount of 100,000 yuan, and finally spent 450,000 yuan to buy it." Shortly after Mr. Sheng bought the car, this Mercedes-Benz EQE officially dropped another 100,000 yuan. Mr. Sheng thinks this is a completely understandable market behavior. However, many problems were found during the use of the vehicle.

Mercedes EQE Full battery life can only run 200.How many kilometers?

Mr. Sheng told reporters that the car he bought had problems with its battery life during use. "It is no problem to drive 650 kilometers when you just pick up the car, and then the cruising range is getting shorter and shorter. Now you can only run more than 200 kilometers on full charge. At the beginning of the car, it was fully charged with 96 kWh of electricity. Now it can only be charged with 42 kWh when it is charged in a state of power loss. "

Mr. Sheng also fed back the problem to the Mercedes-Benz 4S shop, and the staff gave it a test. At that time, no fault code was found, indicating that the battery was normal. At the suggestion of the staff, Mr. Sheng found the fast charging pile and consumed less than 10% of the electricity for self-test charging. Mr. Sheng tested that the battery was fully charged from 8% to 100% and found that the charge was still 42 kWh. Mr. Sheng recorded the video of the charging process and handed it to the staff of the 4S shop. "The cruising range shows 650 kilometers when fully charged, but the cruising range drops very quickly during the actual vehicle driving." Mr. Sheng said.

Mercedes EQEThe reverse function appears. "Failure"?

In addition, Mr. Sheng also found that there were problems with the electronic control of his car. "Going out in the morning, in the process of reversing, the display has hung up the reverse gear, but the locomotive has no movement at all." Mr. Sheng turned off the power for many times, but it still failed to restart. So Mr. Sheng called for help. After several attempts by Mr. Sheng, the reverse gear function returned to normal. Mr. Sheng told reporters that for this problem, the staff of the 4S shop also had no fault code and could not detect the problem.

Mr. Sheng told reporters that after many times of communication, the 4S shop promised to replace the battery, but he also had his own concerns. "Replacing the battery will definitely appear in the maintenance record, which will devalue the second sale of your car."

4SStore response: the battery has been replaced for the customer.

In order to implement the situation, the reporter contacted Chengyang Lixingxing, and the staff said that Mr. Sheng’s Mercedes-Benz EQE had been technically tested for battery failure, because during the warranty period, Mr. Sheng had been given the process of replacing the battery. Free battery replacement for Mr. Sheng, and an agreement has been reached with Mr. Sheng. She is not clear about whether there is a problem with electronic control, but she will ask her after-sales colleagues about the situation.

Lawyer: You can claim compensation if the vehicle depreciates.

Do you have the right to ask for extra compensation besides replacing the battery for Mr. Sheng’s experience? Lawyer Niu Hongyan of Beijing Dacheng (Qingdao) Law Firm believes that "if there is evidence to prove the existence of vehicle depreciation or other economic losses, you can claim compensation, but in practice, it is difficult to identify the depreciation loss. In terms of contract correspondence, after the seller bears the liability for vehicle depreciation, it is impossible to claim compensation from the manufacturer. "

   In response to the above problems, Peninsula Network will continue to pay attention.

Kia EV5: The Dark Horse in the Compact SUV Market

? In August 2023, during the 26th Chengdu Auto Show, it officially ushered in the world’s first show and started the pre-sale simultaneously. On November 17th, 2023, KIA EV5 was officially launched at Guangzhou Auto Show, and a standard endurance version was launched. On February 1st, 2024, the KIA EV5 720 long battery life version was advanced, providing a higher cruising range.

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? The official suggested retail price of KIA EV5 standard battery life version is 149,800 yuan for 530Light version, 159,800 yuan for 530Air version and 174,800 yuan for 530Land version. The official suggested retail prices of KIA EV5 720 long battery life version are: 720Air version 184,800 yuan, 720Land version 201,800 yuan and 720Wave version 225,800 yuan respectively.

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? Appearance: KIA EV5 adopts family-style design style. The front part adopts closed air intake grille and irregular headlight group design. The side lines of the car body are tough, with suspended roof design. The tail design echoes the front face, showing a sense of the future.

Interior: The whole car is dominated by coffee color. The center console is equipped with a large-size touch screen and an integrated double screen design. The seat is designed in a rotating way, providing wireless charging board, seat heating/ventilation, panoramic canopy and other configurations.

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? The standard endurance version is equipped with a 64kW·h battery pack and a 160kW motor, and the standard cruising range of CLTC is 530 km. The long-life version is equipped with an 88kw·h battery pack, with a target cruising range of 700km. The EV5 720 long-life version is equipped with 88.1kWh battery pack, and the actual cruising range can reach 720km, and it only takes 27 minutes to recharge the battery from 30% to 80%.

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? As a compact SUV, KIA EV5 has excellent performance in comfort and space utilization, especially after the launch of the long-life version, its market competitiveness has been further improved. To sum up, KIA EV5 is a pure electric SUV with high cost performance. With its unique design, excellent performance and reasonable price, KIA EV5 has attracted wide attention from the market.

Jinan Roewe RX5 Price Reduction News! The latest offer is 74,900, and the quantity is limited.

[car home Jinan Preferential Promotion Channel] is currently carrying out large preferential activities in Jinan, with a maximum discount of 28,000 yuan and a minimum starting price of only 74,900 yuan. Friends who want to buy Roewe RX5 may wish to click "Check the car price" in the quotation form to get higher discounts.

济南荣威RX5降价消息!最新报价7.49万,数量有限

The exterior design of Roewe RX5 combines fashion and technology. Its front face adopts a family design language and is equipped with a large-size air intake grille. The interior of the grille adopts a black grid texture, which enhances the visual impact of the front face. The headlight groups on both sides are closely connected with the grille, showing sharp lines, making the vehicle more dynamic. The overall style is simple and powerful, the body lines are smooth, the tail design is simple and generous, and the taillights use LED light source, which has high recognition after lighting. The exterior design of Roewe RX5 not only keeps modern sense, but also gives consideration to practicality and aesthetics.

济南荣威RX5降价消息!最新报价7.49万,数量有限

Roewe RX5 has a body size of 4655*1890*1664mm, a wheelbase of 2765mm, a front tread of 1590mm and a rear tread of 1584 mm.. Its side lines are smooth and dynamic, with 245/45 R20 tyre size and 20-inch rims, showing a fashionable and sporty style.

济南荣威RX5降价消息!最新报价7.49万,数量有限

The interior design of Roewe RX5 is simple and full of scientific sense. The center console adopts a 27-inch large screen, which integrates the functions of multimedia system, navigation, telephone and air conditioning control, and supports voice recognition, which improves the convenience of operation. The steering wheel is made of genuine leather, which makes it feel comfortable. At the same time, it has the function of manual adjustment up and down and back and forth to meet the individual needs of different drivers. The seat is made of imitation leather, and the main driver’s seat is equipped with heating function. The adjustable range includes front and rear, backrest, height (2-way) and lumbar support (4-way), while the front and rear and backrest of the co-pilot seat can be adjusted. In addition, the Roewe RX5 is also equipped with the memory function of the driver’s seat, and the front seat has the heating function to provide a comfortable ride experience for drivers and passengers. The rear seats support proportional tilting, which improves the flexibility of the interior space. There are also a number of USB and SD interfaces in the car, as well as the wireless charging function of the front mobile phone, which facilitates the charging requirements of mobile phones and other smart devices.

济南荣威RX5降价消息!最新报价7.49万,数量有限

Roewe RX5 is equipped with a 1.5T turbocharged engine, which has a powerful power of 188 HP, a maximum power of 138kW and a maximum torque of 300 N m. With the 7-speed wet dual-clutch gearbox, it provides excellent power performance and smooth shifting experience for the vehicle.

The owner of car home @ Mumumuhe gave a very positive evaluation of the Roewe RX5. He mentioned that the Roewe RX5 is not only designed internally and externally, but also full of ingenious details, and it also has a good performance in riding comfort and materials. In particular, the support and wrapping of the front seats and the spacious space in the back row are impressive. In addition, the technology configuration, especially the 27-inch 4K sliding screen, brings a lot of freshness to drivers. Generally speaking, Roewe RX5 has won the recognition of car owners for its unique design and excellent comfort.

Jetway finally made it, with strong power/surprising gearbox performance.

I’ll arrange it for you by the way today. So whether this car is a mule or a horse, let’s take a look at its actual performance.

First of all, from the appearance, the front design of Jetway X70 PLUS is very simple and recognizable. Coupled with simple and fashionable headlights, it looks quite classy. The car is equipped with LED daytime running lights, automatic opening and closing, automatic steering, delayed closing and so on. Coming to the side of the car, the size of the car body is 4749 mm * 1900 mm * 1720 mm. The car adopts solid lines, and the car body presents an elegant design style. With large-sized thick-walled tires, the overall visual effect is very spiritual. In the design of the rear end, the rear end echoes the front face, and the taillights give people a very deep feeling, and the whole looks very simple.

Sitting in the car, the interior of Jetway X70 PLUS looks very simple and elegant, and the visual effect is good. The car looks very good outside the steering wheel, made of leather, and its practicality and face value are not bad. From the central control point of view, the central control screen with 10.25-inch touch-sensitive LCD makes the interior style impressive, which is in line with the temperament of the car. Let Xiaobian introduce the dashboard and seats. The dashboard design is remarkable, giving people a very clean and refreshing feeling. The car adopts imitation leather seats, which are wrapped in place and have good support and comfort.

Jietu X70 PLUS is matched with CVT gearbox, with maximum power of 115KW and maximum torque of 230N.m, and its power performance is good.

The car is equipped with driving mode selection, remote control key, Bluetooth key, rear wiper, traction control (ASR/TCS, etc.), HUAWEI HiCar support and other configurations, which greatly improves the convenience of using the car.

Do you have the urge to buy a car after reading the whole article? Let me make a summary. This class of cars can often give consideration to both cost performance and practicality, and is often considered by most consumers as the first choice when buying a car.

Interview | A detailed explanation of "China Audio-visual Big Data"

It has been nearly three years since the system was put into trial operation, and the big data system for comprehensive evaluation of radio and television program ratings of the General Administration of China has had a profound impact on the industry. What is the core architecture of the system? How does the system highlight innovation and key applications? What is the focus of the next step? Recently, the reporter of "Radio and Television Review" had an exclusive interview with the person in charge of the Big Data Research Center for Program Comprehensive Evaluation of the Radio and Television Planning Institute of the General Administration.

Author: Jiang Yong

"Buzz."

 

Walking into the communication network computer room of the big data system for comprehensive evaluation of program ratings of the General Administration of China, the roaring air conditioning sound made the recording pen stop working.

Communication network room of big data system for comprehensive evaluation of program ratings of General Administration of China.

On the rows of racks, hundreds of servers, switches and routers are running at high speed, and countless data are collected, stored and calculated here in binary form, which eventually become a series of professional numbers on the viewing table.

 

The person in charge of the Big Data Research Center for Program Comprehensive Evaluation said: "The viewing data of more than 300 million users (cable TV, IPTV, Internet TV) in China are gathered here, which is equivalent to the’ brain’ and’ warehouse’ of the whole system."

 

On December 26, 2018, the big data system for comprehensive evaluation of radio and television program ratings of the General Administration of China was put into trial operation. In the past three years, relying on the real and pollution-free viewing statistics and analysis, the system has provided important support for public opinion guidance, program broadcast management, etc., and has also become the main reference for daily assessment and advertising investment promotion of TV stations and other units.

 

"National team data", "pollution-free data" and "dehydration data" are the basic cognition of the industry on the big data system for comprehensive evaluation of ratings, but there are not many in-depth issues about how to create, how to operate and what innovative features this system has. Recently, the reporter of "Radio and Television Review" conducted an exclusive interview with the person in charge of the Big Data Research Center for Program Comprehensive Evaluation of the Radio and Television Planning Institute of the General Administration, revealing the origin, operation and development of this system.

 

On-line: an important measure to control viewing fraud from the source

The first appearance of the big data system for comprehensive evaluation of program ratings was at the end of 2018. However, as early as 2016, under the leadership of the State Administration of Radio, Film and Television, the Radio and Television Planning Institute took the lead in organizing a number of radio and television stations, network operators, research institutes, universities and enterprises, and successively carried out research and development of core technologies for viewing, standard formulation and small-scale experiments.

The big data system for comprehensive evaluation of radio and television program ratings of the General Administration of China was put into trial operation.

The person in charge said that for a long time, the CPC Central Committee has attached great importance to the construction of the viewing survey system and demanded the establishment of an authoritative and convincing new viewing survey system to promote the high-quality and innovative development of radio and television. The Party Group of the General Administration has conscientiously implemented the central government’s decision-making and deployment, and taken the construction of a comprehensive evaluation big data system for program viewing as an important measure to implement the spirit of the central government.

 

At the same time, the authoritative comprehensive evaluation of program ratings is also the general trend of the industry. All sectors of society call for the establishment and comprehensive application of a new audience survey system as soon as possible, so as to solve the outstanding problems in the field of audience survey from the source.

 

In this context, the big data system for comprehensive evaluation of program ratings came into being.

 

Attack: complete the system construction in three stages

From 0 to 1, innovative construction.

 

The big data system for comprehensive evaluation of program viewing abandons the traditional viewing survey mode and innovatively builds a new big data viewing survey system with cloud computing, whole network, full sample and big data as its important features.

 

The person in charge bluntly said, "It is very difficult, from data access to system construction, model and index design to system online, all from scratch".

 

Since 2016, the construction process of the system has been divided into three stages with different periods and different key points.

 

In the first stage, the Radio and Television Planning Institute led relevant units to carry out independent research and development of the core technology of viewing survey, formulated and published a number of industry specifications such as viewing data element set, exchange interface and cleaning rules, and independently mastered a number of core technology patents and software copyrights.

 

At the same time, by studying the theory of big data viewing survey, the index system and calculation method are determined to solve the problems of sample analysis, statistical rules and processing methods, data modeling and analysis of big data viewing under the new situation.

 

In the second stage, the Planning Institute organized a number of cable TV networks, IPTV and Internet TV institutions to carry out tens of millions of technical experiments, which verified the rationality and feasibility of the basic theory, technical scheme, index system, survey standards, model algorithms, quality control, security and privacy protection strategies of the large sample viewing survey formed in the first stage.

 

At this stage, the experiment was highly praised by experts, and it was agreed that "it can meet the needs of ultra-large-scale, multi-source heterogeneous viewing data analysis and comprehensive evaluation of programs".

 

In the third stage, in the second half of 2018, the State Administration of Radio, Film and Television decided to carry out the construction of "Big Data System for Comprehensive Evaluation of Radio and Television Program Audience" by the Planning Institute on the basis of previous scale experiments and trial and error.

 

"From project research to experimental verification to system construction and operation, it embodies the efforts and efforts of many staff." The person in charge said.

 

As far as the industry is concerned, the completion and operation of the system has played an important role in establishing a scientific, true and effective ratings evaluation system and fundamentally solving the problem of ratings fraud.

 

Architecture: five characteristics to strengthen service management

How does the big data system for comprehensive evaluation of program ratings work?

 

The person in charge introduced that the process of viewing big data involves the collection, cleaning, warehousing, analysis and application of viewing big data. "The whole process is a bit like cooking."

 

The operation flow of the system is that the user’s viewing data is directly collected from the set-top box by operators (such as gehuayouxian) and transmitted to the viewing comprehensive evaluation big data system through a secure channel. After collecting, gathering, cleaning and converting massive data, the system carries out modeling, statistics, analysis and other work, and outputs big data viewing survey indicators.

 

There is no human intervention in the whole process. At the critical data acquisition stage, the system is equipped with a three-level verification mechanism of normative verification, integrity verification and rationality verification, which effectively prevents data from being contaminated.

 

On the whole, the innovation of big data system can be summarized into five aspects:

 

First, the sample is complete, the coverage is wide, and there are massive data sources. The system has realized the aggregation and analysis of the viewing data of 300 million cable TV, IPTV and Internet TV users nationwide, covering various viewing modes such as live broadcast, review and on-demand.

 

The second is big data, cloud computing, efficient processing and accurate home. Based on big data and cloud computing technology, the system can efficiently and timely count the super-large-scale viewing data and analyze the accurate home-to-home, which can not only reflect the viewing situation of popular programs and prime time, but also accurately capture the viewing characteristics of minority programs and marginal time.

 

The third is to prevent manipulation and pollution, and fundamentally solve the falsification of viewing. The data collection, cleaning, analysis and presentation of the system are seamlessly connected, and the whole process is automated and closed to prevent human manipulation. The system is based on massive data statistics, and the influence of individual sample data pollution on statistical results can be ignored, so the system has strong anti-pollution ability.

 

Fourth, multi-dimensional and all-round, and integrated analysis leads development. The system innovatively established an indicator system of viewing big data covering more than 80 core indicators in eight aspects. Through deep mining and timely feedback of viewing data, it guided content selection, material integration, demand combination, analysis and prediction, creation and production, changed the traditional program production mode, and effectively guided the healthy development of the industry.

 

The fifth is all-media, openness, and presuppose a new orientation in the future. The system adapts to the development of media convergence and the new changes of communication pattern and communication environment, continuously enriches the sources of TV viewing data, and will comprehensively cover different communication channels such as cable TV, satellite live broadcast, IPTV, Internet TV and network audio-visual fields, and preset the new positioning and model under the general trend of national cable TV network integration and 5G mobile application in advance.

 

Impact: promoting industry development with data

At the beginning of the trial operation of the big data system for comprehensive evaluation of program ratings, many media commented that "the problem of industry ratings was rectified in a radical way".

 

Up to now, the positive impact of the system on the industry has already appeared.

 

According to the person in charge, at present, the system has exported more than 30,000 professional data analysis reports to the central leadership, Publicity Department of the Communist Party of China, industry authorities, national television stations, etc., supporting publicity and regulation, and helping TV stations to create, produce and broadcast management, which has been affirmed by many parties.

 

Through data query and analysis or data report presentation, it provides comprehensive data support for CCTV, China Education TV, movie channels and national satellite TV channels, and becomes the main data for daily program assessment.

 

On December 17, 2019, the Program Comprehensive Evaluation Big Data Research Center officially released the viewing data to the public under the brand of "China Audio-Visual Big Data (CVB)". After the release of CVB data, it was well received by the public and applauded the SARFT’s "combination boxing" and "heavy punching" to control ratings fraud.

The first viewing data released by "China Audio-Visual Big Data (CVB)" to the public.

At the end of 2020, formulated by the State Administration of Radio and Television and approved by the National Bureau of Statistics, the "Statistical Survey System of Radio and Television Program Audience Big Data" was released, and the radio and television industry became the first industry to conduct statistical surveys of government departments in the form of big data.

 

Talking about the focus of the next step, the person in charge introduced that there are about 50 employees in the Big Data Research Center for Program Comprehensive Evaluation, who are responsible for data access and analysis, data report compilation and release, public opinion analysis, data application promotion and so on.

 

On the basis of the existing work, the Planning Institute will rely on large system resources to promote the implementation of the "Big Data System Expansion for Comprehensive Evaluation of Radio and Television Program Audience" project, improve the scale of system data aggregation, optimize the data chain mechanism, improve the quality of data throughout the life cycle, ensure the accuracy, completeness and timeliness of data collection and aggregation, and ensure the authenticity, objectivity and order of data release and application.

 

With the multi-screen viewing environment, the Planning Institute will accelerate the data access of Internet TV and Internet audio-visual websites, build a data index system for the network audio-visual field, realize the effective aggregation and analysis of network audio-visual viewing data, and give full play to the role of "China audio-visual big data".

 

A few days ago, the State Administration of Radio and Television issued the Notice on Further Strengthening the Management of Cultural Programs and Their Personnel, which clearly stated: "Look at quantitative indicators such as ratings and click-through rates scientifically and increase the promotion and application of’ China Audio-visual Big Data’."

 

Regarding the new requirements, the person in charge said, "We will continue to optimize and improve the big data system for comprehensive evaluation of program viewing, better serve publicity management, support the development of the industry, and achieve comprehensive and diversified data support for the dissemination of quality programs."

 

(Ning Yahong also contributed to this article)

Editor | Ning Yahong Sui Fangfang

Innovating technology, breaking through difficulties and making every effort to get through the last 4.4 kilometers of Beijing-Tangshan intercity railway Beijing tunnel section project

The shield machine "Jingtong" is working at the excavation construction site of Yunchao Jianhe Tunnel.

The shield machine "Jingtong" is working at the excavation construction site of Yunchao Jianhe Tunnel. (Pan Zhiwang photo)

  Not far from the Beijing City Sub-center Station under construction, the shield machine "Jingtong", the largest diameter high-speed railway tunnel in Beijing, is excavating underground at a speed of 8 rings per day. At present, only 4.4 kilometers of Beijing tunnel section of Beijing-Tangshan intercity railway has completed 50% of the total project, and the main structure will be completed by the end of 2024, laying the foundation for opening conditions by the end of 2025.

  Although the sparrow is small and complete, the Beijing tunnel section project integrates innovative elements such as large-diameter shield tunnel, prefabricated U-shaped groove of subgrade and fully welded double V-shaped arch bridge. The Municipal Major Project Office, together with all parties involved in the construction, will strengthen scientific and technological innovation, practice new quality productivity, and strive to turn it into a demonstration project of the city sub-center.

  "Intelligent Shield Machine" Tunneling "Without Changing Cutters"

  Beijing-Tangshan Intercity Railway is a fast traffic corridor from Beijing to Tangshan. The project is divided into two sections. The first section from Songliang Road to Yanjiao was opened to traffic on December 30, 2022, and the remaining Beijing Tunnel is 4.4 kilometers long. Among them, the 1.3-kilometer-long Yunchao Jianhe Tunnel is not only the last tunnel in the whole line, but also the first large-diameter shield tunnel for high-speed rail in the sub-center area of Beijing.

  "Swing mode, go!" On April 10, I came to the shield construction site located 31 meters underground. I saw that the yellow "big" shield machine stretched out the "sucker", picked up a segment weighing three or four tons, and slowly moved and rose. When it reached the joint with the previous segment, the jack exerted force and tightened the "nut" to tightly splice the two segments together.

  "Every 9 segments can form a ring. Now this tunnel has completed the 309 ring and completed nearly half of the workload. By October this year, the internal structure construction of the tunnel will be completed. " Wei Zhe, deputy manager of the shield of the Eighth Bid Project of Jingtang Railway of China Railway 14th Bureau, introduced the shield machine "Jingtong" independently developed by China Railway Construction. The total length of the shield machine is about 138 meters, the total weight is about 3,200 tons, and the cutter head diameter is 13.3 meters. It is the largest high-speed railway tunnel shield machine in Beijing.

  The shield section passes through the high-density medium sand stratum, with sand layer accounting for 85% and Shi Ying content reaching 60%, which accelerates the wear of cutter head and cutter. In order to enhance the tunneling ability, the project side tailored a sharp "tooth"-a three-layer cutter for "Jingtong" to reduce the wear during tunneling and optimize the opening rate of the cutter head, so as to finally realize one-time tunneling without changing the cutter. In addition, "Jingtong" is also equipped with optical fiber continuous and hydraulic wear detection devices, which can detect tool wear in real time and adjust shield tunneling parameters in time, so it can be called "intelligent shield machine".

  Prefabricated U-shaped groove is greatly accelerated.

  About 300 meters to the east of the shield launching shaft is a U-shaped groove of closed subgrade, from which the train will drive out of the ground in the future.

  Compared with the fiery scene of the shield launching shaft, the scene of the U-shaped groove is slightly "cold and cheerless", which is a hidden mystery. Of this 461-meter subgrade, 216 meters are prefabricated and assembled with U-shaped groove structure, that is, factory centralized prefabrication, which is mechanically assembled like building blocks on site to achieve safe and rapid construction. It is the first case in the national railway engineering to build a U-shaped groove with prefabricated parts, which fills the technical gap in the assembly and construction of the U-shaped structure of subgrade.

  Wei Zhe explained that prefabricated assembly has obvious advantages. In terms of personnel, the prefabricated assembly section only needs about 15 workers a day, while the number of people in the pouring section is 4 to 5 times that of the prefabricated section. In terms of time, it takes 15 days to pour the same 18-meter U-shaped groove, and only 5 days to lay it with prefabricated parts, which greatly shortens the construction period. In addition, the amount of steel bars and concrete in precast construction is reduced by 11% and about 45%, which is low in noise and pollution, in line with the trend of green development of buildings and resource conservation and utilization.

  All-welded steel box arch bridge echoes "Jingfan"

  Continue to go east, 80 meters east of the U-shaped groove, and the builders are simultaneously building an arch bridge.

  From the design, this 79.75-meter-long white arch bridge is a double V-shaped suspender structure, which is shaped like a finger and contains the meaning of "victory" and "welcome". The overall shape is like two pairs of swallows flying with their wings spread, echoing each other with the hub "Jingfan" of Beijing Sub-central Station not far away.

  The reporter learned that the arch bridge crosses Tongji Road, the main road of the city’s sub-center, and is close to beijing-harbin railway and Tongyan Expressway. In order to reduce the impact on the current traffic, the Municipal Major Project Office took the lead in organizing the participating units to optimize the cast-in-place concrete arch bridge with full support into a fully welded steel box arch bridge after many demonstrations. In the future, the construction will be carried out by the scheme of moving horizontally first and then pushing vertically, and the process of factory processing and on-site assembly will also greatly reduce the construction time.

  "The arch bridge has adopted a brand-new lightweight design. The dead weight of the bridge has been reduced from 4,600 tons to 700 tons, and the steel consumption per linear meter is only 11.2 tons, which can greatly save the steel consumption. This is also the first time that truss steel box arches with sparse suspenders have been used in domestic railway construction. " Liu Lei, senior project manager of the engineering department of Jingtang Company, said that the bridge will also introduce magnetic unmanned video inspection equipment for the first time, which will make the daily maintenance of the steel bridge safer, simpler and lighter, reduce its own maintenance workload and improve the intelligent level of operation and maintenance. (Ren Shan)