我对电影的导轨形式。
本文将对国内外直轨和弯轨形式爬楼梯装置的传动系统及其原理进行分析和研究。
The transmission system and its principle of the domestic and overseas stair lift with straight and curve rails are analyzed in this paper.
它是通过测量列车在运行过程中车轮踏面与钢轨接触时产生的冲击载荷引起的钢轨形变来检测车轮踏面擦伤。
The principle of the project is that the wheel tread will generate the impact load that induce deformation of rail when the train running.
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