On the basis of comparison between STEP-NC Program and G/M code, the structure, characters and application of STEP-NC in CNC System are analyzed in details.
在对STEP-NC与G/M代码进行比较的基础上，详细地阐述了STEP-NC程序结构、特征以及其在CNC系统中应用和地位。
The procession code program of nc punch press is the key to nc-machining.
数控冲床的加工代码程序，是数控加工的关键所在。
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。
A design model of NC code complier based on ANother Tool for Language Recognition (ANTLR) was presented, which adopted the Extended Backus Naur Form (EBNF) to define the NC program syntax rule.
采用了扩展的巴科斯范式(EBNF)定义NC程序语法规则，提出了一种基于语言识别工具(ANTLR)的NC代码编译器的设计模型。
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。
Previous interface information between CNC system and design systems is the ISO6983 standard, that is, using g, m code of the NC program.
以往数控系统与设计系统的接口信息采用的是ISO 6983标准，即采用G、M代码的数控程序。
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。
Researched on the translation of PMAC program and standard code, executed standard G-code NC program, it solved the problem of NC program's versatility.
研究PMAC程序与标准指令代码的编译，实现了机床执行标准G代码NC程序的功能，解决了NC程序通用性问题。
Researched on the translation of PMAC program and standard code, executed standard G-code NC program, it solved the problem of NC program's versatility.
研究PMAC程序与标准指令代码的编译，实现了机床执行标准G代码NC程序的功能，解决了NC程序通用性问题。
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