汽车等运输工具装载量的称重主要采用两种称重装置：一种是用机械方法构成的地磅称重，另一种是采用传感器作测力装置的电子衡。
Commonly we have two kinds of weighing instrument for truck carrier: loadometer, which is made in mechanical way, and electronic weighing machine, which USES sensor as force measuring instrument.
提出一种用螺旋角仿形加工装置在工具磨床上刃磨齿轮滚刀前刀面的方法。
By using the profile modeling machining equipment of helix Angle, a new method about grinding rake face of gear cutter hob on tool grinder is presented.
双梁式整体提升法是一种新型的大型结构安装方法，主要由固定梁、活动梁、钢绞线、工作锚、工具锚、导向装置及千斤顶组成，与现在常用的安装方法相比，具有价廉、安全、高效和易推广等特点。
As a new installation method for big structures, double girder integral lift is mainly composed of fixed girder, moveable girder, work anchor, moveable anchor, jacks and guide rail.
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