介绍了米制梯形螺纹车削加工用户宏程序的编制和简单调用的方法，对提高数控机床的使用性能有很大的帮助，对其它非标螺纹的编程也具有一定的借鉴意义。
To improve the performance of NC machine tool, the paper introduces the method of custom macro programming technique and simple call on transfer process of the metric system ACME screw thread.
本文研究共辐射接枝法改善聚四氟乙烯车削板的粘接性能。
This is a work to improve viscous property of polytetrafluoroethylene turning plate by, mutual radiation grafting.
介绍了超声振动车削快速落刀装置的性能和结构。
It is introduced about the feature and structure of the fast tool lowering device for supersonic vibration turning.
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