traction return rail 牵引回流轨
The hopper elevator is a kind of single bucket elevator, which is composed of a hopper, a rail and a bracket, a traction winch and a pulley.
料斗升降机是起重机械中的一种单斗提升的升降机，一般由带走轮的料斗、轨道及其支架、牵引绞车和滑轮组成。
Train traction calculation is an important part of urban rail transit system.
列车牵引计算是整个城市轨道交通的重要组成部分。
This article introduces the traction power supply system in Wuhan, especially the electrical and mechanical indices of aluminum -composite conductor rail and its accessories.
本文介绍了武汉市轨道交通的牵引供电系统，重点介绍了钢铝复合接触轨及其附件的电气和机械性能指标。
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