G code index this part of NC program, and report to the programming of the calculation method, where the part process analysis is the focus of this and difficulty.

用G代码编制该零件的数控加工程序，并附以编程尺寸的计算方法，其中零件工艺规程的分析是此次论文的重点和难点。

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So developing automatic NC programming system to get efficient G code program, become the study object for lots of engineer.

所以开发优异的数控自动编程系统，更加准确、高效的编制机床程序（G代码），成了众多专业人员的研究方向。

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G code index this part of NC program, and report to the programming of the calculation method, where the part process analysis is the focus of this paper and difficulty.

用g代码编制该零件的数控加工程序，并附以编程尺寸的计算方法，其中零件工艺规程的分析是此次论文的重点和难点。

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