It is not true that maglevs do not need tunnels due to their climbing ability (10%).

 
  • 由于磁悬浮的爬坡能力仅有(10%25),不能确信它不需要隧道。为避免过山车效果,斜坡梯度需要必要的延伸。
今日热词
目录 附录 查词历史