road bed

同根派生

英汉例句

• With the Ballastless track technology extensive used, the problem of the track on solid bed damage and rectification is paid more and more attention now.
  摘要随着无碴轨道技术的广泛运用，整体道床产生的病害及维修问题也越来越引起重视。
• The new rail is is being loaded onto the track bed.
  轨道路基上正在装新的铁轨。
• There is a special tool to impact the road when it is under construction so the base is solid.
  有种特殊的工具可以在道路修筑过程中将路面压紧，因此，路基是结实的。