Uses crank box as objects in NC machining, and discusses the establishment of coordinate system and the calculation of deviation value of multiple work position workpiece.
以曲轴箱体为数控加工对象，讨论多工位工件坐标系的建立和零点偏置值的计算。
A strong interaction exists between the vacuum cycle and the heating cycle on the crank gear box (do or not do the heating cycle?)
曲轴齿箱中的真空循环与加热循环之间存在的巨大交互感应(做还是不做加热循环？)
A shoulder sprayer comprises a box body, a gas chamber, a pump, a link rod, a rocker, a crank and a spray tube with a suction pipe.
一种背负式喷雾器，由箱体、气室、唧筒、连杆、摇杆、曲柄、带吸水管的喷管组成。
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