中文摘要：

将有穷机理论应用于数控程序的语法分析中，构建了数控程序的语法分析模型。应用图论的相关定理，证明了该模型的正确性和可行性，为数控代码译码程序的开发提供了新思路。

英文摘要：

The theory of finite automaton is applied in the analysis of NC code grammar, and the grammar model of NC code is constructed. Based on the graph theory＇s theorem, the correctness and feasibility of the model are proved which provide academic guidance for the development of the decoding program of NC code.