The contents of chapter 4 focuses on the NC machining portion of structure introduced in chapter 3 under the circumstance of Pro/ENGINEER, moreover discusses Pro/NC and module of post processing named Pro/NCPOST.

• 第四章的内容，将围绕第三章中所生成的部分结构在Pro/ENGINEER环境下进行数控加工，并对加工Pro/NC和后置处理模块Pro/NCPOST进行介绍。