成人高潮潮喷视频在线观看|中日韩国语视频在线观看|国产一级无码黄色片子|国产精品中文字幕在线|国产激情艳情在线看视频|国产毛多水多高潮高清

  

400 km/h High-Speed Train Enters the "Uncharted Territory"

 

  

        On the evening of July 20, a freight train carrying two extra-large transformers, each weighing 330 tons, departed from Shanghai Minhang Railway Station, heading to Liupanshui city in Guizhou. This marked the inaugural operation of the Yangtze River Delta railway's first transport of extra-large transformers. During the 12th World Congress on High Speed Rail on July 9, the National Railway Test Center in Beijing Chaoyang attracted great attention from domestic and international participants. Here, attendees eagerly experienced the world’s first new-generation high speed EMU, the CR450, with a test running speed of 450 km/h and a commercial operating speed of 400 km/h.

  Currently, the CR450 EMU has completed the prototype rollout, type testing and interoperability debugging. It is undergoing assessment trials and performance validation to prepare for on-line trial operations.

  "This signifies that China's railway has breaks into uncharted territory," said Zhao Hongwei, chief technical expert of the Fuxing EMU train and chief researcher at China Academy of Railway Sciences. To raise the commercial operating speed by another 50 km/h, CR has led the formation of an innovation consortium, overcoming challenges such as permanent magnet traction, aerodynamic drag reduction and short-distance braking. It is the first in the world to establish a technical system for 400 km/h EMUs.

附件:
回到頂部
   成人高潮潮喷视频在线观看|中日韩国语视频在线观看|国产一级无码黄色片子|国产精品中文字幕在线|国产激情艳情在线看视频|国产毛多水多高潮高清 钦州市| 铁力市| 斗六市| 托克逊县| 新安县| 德江县| 肇源县| 高密市| 新昌县| 金乡县| 望都县| 正阳县| 六安市| 靖远县| 临海市| 鹤壁市| 荥经县| 萨嘎县| 堆龙德庆县| 永川市| 桂东县| 宁德市| 苗栗市| 平远县| 斗六市| 太湖县| 黎城县| 芜湖市| 信阳市| 巫溪县| 花垣县| 沅陵县| 黄山市| 建昌县| 苗栗县| 和平县| 永吉县| 丽江市| 大石桥市| 岳阳县| 安阳市| http://444 http://444 http://444 http://444 http://444 http://444