“城市轨道交通车辆”是个多义词，它可以指城市轨道交通车辆（专业名称）, 城市轨道交通车辆（张振淼著图书）。
早期的城市轨道交通车辆一般由硬线控制，没有网络或者网络不参与控制。
At the earlier stages, the vehicles were controlled by hard track lines without any network operation.
城市轨道交通车辆高速运行在线路上，所经历的动力响应是一个随机过程。
When the UMT vehicles run on the overhead railway, their dynamic responses are actually stochastic procedures.
铝合金挤压特宽空心壁板型材是地铁、城市轨道交通车辆用经济断面型材。
Aluminum extruded hollow profile with super large section is a kind of high efficiency profile, which is used for subway and other railway vehicles.
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