<label id="xi47v"><meter id="xi47v"></meter></label>

      Lighter material in rockets adapted for high-speed trains in China

      Source: Xinhua| 2018-05-02 14:36:39|Editor: Lifang
      Video PlayerClose

      BEIJING, May 2 (Xinhua) -- To make high-speed trains lighter and faster, Chinese scientists and engineers have designed train components made of carbon fiber composite material, which has been used in rockets.

      China Academy of Launch Vehicle Technology (CALT) has used the material to make the skirt plates of the trains. Skirt plates are large structures that reduce drag and protect the trains' internal equipment.

      According to Gu Chunhui from CALT, skirt plates made of the composite material make the trains lighter and faster. Besides, the material is non-toxic and flame-retardant.

      Currently most of the skirt plates are made of metal. Although they can meet performance requirements, they are heavy and not conducive to speed.

      Only a few countries manufacture the material, which has been widely used in Long March rockets, Gu said.

      Skirt plates made of the material are expected to be produced in small quantities by the end of 2018, and the material will be applied to more components thereafter, according to CALT.

      The maximum speed of China's bullet trains rose to 350 kph, when Fuxing (Rejuvenation) bullet trains started operation between Beijing and Shanghai on Sept. 21, 2017. China is developing bullet trains with speeds up to 400 kph.

      TOP STORIES
      EDITOR’S CHOICE
      MOST VIEWED
      EXPLORE XINHUANET
      010020070750000000000000011100001371510621
      主站蜘蛛池模板: 免费的全黄一级录像带| 亚洲高清有码中文字| 男女啪啪免费体验区| 国产亚洲精品免费| 国产精品成人亚洲| 免费在线观看中文字幕| 特级毛片aaaa级毛片免费| 免费国产怡红院在线观看| 久久精品熟女亚洲av麻豆| jizzjizz亚洲| xxxxx做受大片视频免费| 亚洲中文字幕无码爆乳AV| 色播在线永久免费视频网站| 国产精品二区三区免费播放心| 亚洲永久无码3D动漫一区| eeuss草民免费| 亚洲Av无码专区国产乱码DVD| 亚洲AV无码成人网站久久精品大| 亚洲午夜精品一区二区| 免费黄色电影在线观看| 亚洲熟妇av一区| 成人av免费电影| 一级特黄录像免费播放中文版| 91精品视频免费| 亚洲AV无码资源在线观看| 亚洲熟女乱综合一区二区| 免费看搞黄视频网站| 亚洲AV综合色区无码二区爱AV| 羞羞视频在线观看免费| 亚洲国产精品无码久久一区二区| 亚洲国产成人AV在线播放| 亚洲无码高清在线观看| 99精品在线免费观看| 亚洲成a人片在线不卡一二三区 | 999zyz**站免费毛片| 亚洲综合精品香蕉久久网97| 女人18毛片特级一级免费视频| 久久精品国产亚洲AV网站| 免费观看激色视频网站bd| 免费视频成人国产精品网站| 久久久久亚洲精品男人的天堂 |