solid concrete roadbed
英
美
- 整体道床
双语例句
- 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。
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