underground equipment是什么意思 underground equipment怎么读
underground equipment的相关资料
underground equipment的用法和样例
- Rolling stock can be lifted on a track where there is no pit, especially if there is a need to exchange a piece of underfloor equipment.
在没有宽型地沟的的检查线上也可以进行架车作业，用于更换车下设备。
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