The paper analyses the structural characteristic and work principle of screw with variable pitch, designed machining technics, put forward a particular method of nc programming.
文中分析了异型截面供送变螺距螺杆的结构特点和工作原理，设计了其加工工艺，提出了一套加工该螺杆的独特的数控编程方法。
The functions and principle of tool length compensation is introduced, and the way of tool length compensation in NC programming and method of tool length compensation is discussed.
介绍了刀具长度补偿的意义和原理，探讨了刀具长度补偿方式以及刀具长度补偿指令的用法。
The paper deals with the principle and structured programming of a microcomputer numerical control (MNC) system that is used on nc machining the turbine impeller with 5-dimension interpolation.
五维插补数控加工透平叶轮的微机数控(mnc)系统主要论述数控加工整体透平叶轮的微机数控系统的结构、工作原理和多维插补法。
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