The selecting needle machine adopts a piezoelectric ceramics tablet, and adopts a three work bit selecting needle manner.
所述选针器采用压电陶瓷片，并采用“三功位”选针方式。
The hardware control system principally completes the process to documents generated by software system as well as real-time control to a selecting needle machine.
所述硬件控制系统主 要完成对软件系统生成的文件的处理及选针器的实时控制。
For needle roller bearings without inner ring, a suitable internal clearance is achieved by selecting the appropriate tolerance for the raceway diameter.
对于无内圈滚针轴承，通过为滚道直径选择合适的公差，可得到合适的内部游隙。
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