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The reporter learned from China State Railway Group Co., Ltd. (hereinafter referred to as China Railway Group)，A few days ago，Independently developed by our country、The world's leading new Fuxing high-speed comprehensive inspection train goes online。This vehicle serves as a new technology verification platform for high-speed EMUs and participates in the preliminary trials of the development of CR450 EMUs，April 12，Successfully achieved a single train speed of 403 kilometers per hour in the tunnel on the Badong to Wanzhou 188bet app download section of the Zhengzhou to Chongqing high-speed railway、Relative intersection speed reaches 806 kilometers per hour；April 21，Successfully achieved a single train speed of 435 kilometers per hour on the Puyang-Zhengzhou section of the Jinan-Zhengzhou high-speed railway、Relative intersection speed reaches 870 kilometers per hour，Created a world record for the intersection speed of high-speed rail EMU trains between the open line and the tunnel。This marks the full launch of the “CR450 Science and Technology Innovation Project” included in the national “14th Five-Year Plan”，will provide the most important technical support and leadership for the development of CR450 EMU，It will also provide the most important support and guarantee for the construction of the 350 kilometers per hour safety standard demonstration line。

Introduction by the person 188bet mobile login in charge of the Science and Information Department of China Railway Group，China Railway Group thoroughly implements the Party Central Committee、State Council Innovation-driven Development Strategy，Give full play to the leading role of high-speed rail in technological innovation，Unite with enterprises related to high-speed rail design and manufacturing in my country、College、Scientific Research Institute，Based on Beijing-Zhangjiakou High-speed Railway Intelligent EMU，Developed the world's leading new Fuxing high-speed comprehensive inspection train。This car uses eddy current braking independently developed in my country、Carbon ceramic brake disc、Permanent magnet traction system、9 new technologies including active control of pantograph，Composed of 4 motor cars and 4 188bet app trailers，Enhance the safety of EMU trains、Reliability、Efficiency、Economy，The overall performance has reached the world's leading level，Filled many domestic technical gaps。

Since April this year，The world's leading new Fuxing high-speed comprehensive inspection train is on the Jizheng High-speed Railway、Zhengzhou-Chongqing High-speed Railway has carried out preliminary trials of CR450 EMU development，Carried out dynamics under high-speed operation and high-speed intersection conditions in open lines and tunnels、Aerodynamics、Resistance、More than 60 scientific experiments including noise，Successfully achieved a single train speed of 435 kilometers per hour for the first time in the world、Open line intersection with relative speed of 870 km/h and single train speed of 403 km/h、Tunnel 188bet Live Casino intersection with a relative speed of 806 kilometers per hour，Acquired EMU trains and high-speed railway foundations under different working conditions、Characteristic data of infrastructure such as tunnels，Related indicators performed well，Explored the safety related to increasing train speed、Change rules of comfort parameters。

The person in charge pointed out，The world's leading new Fuxing high-speed comprehensive inspection train was put into operation and successfully carried out a series of scientific tests，Verified the performance of new technology equipment，Explored the boundary conditions of EMU operation under higher speed conditions，Further enriched and expanded the basic theoretical research results and engineering practical experience of my country's high-speed railway，For improving the self-reliance and 188bet sports betting app download self-reliance of railway science and technology、Consolidate my country’s world-leading position in high-speed rail，of great significance。