推导了钢轨扭转角的计算公式，并计算了几组不同荷载作用下的轨顶水平位移。
The formula of twist Angle of rail is derived and lateral displacements on the top of rail subjected to the several different loads are calculated by using the formula.
这个测量放大器是设计安装在控制机箱内，也可以安装在由挤压型材制成的顶帽式导轨外壳的承载轨上。
The measurement amplifier is designed to be installed in a control cubicle and can be put on a carrying rail in a top hat rail housing made of extruded sections.
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