urban mass tranit是什么意思 urban mass tranit怎么读
urban mass tranit的用法和样例
- Traction calculation of trains is one the important composing of the whole urban rail traffic.
列车牵引计算是整个城市轨道交通的重要组成部分。 - With more overhead railway lines built in a city, it is worried about the railway accident occuring on the overhead urban railway.
摘要随著城市轨道交通高架化的大力推行，救援人员必须对高架桥上的起复抢修进行预案准备。
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