在操作系统VSE中，用该操作系统支持的任何一种语言编写的，且已在系统子程序库中编目的一组源语句。

In VSE, a group of source statements written in any of the languages supported by VSE and cataloged in one of the system sublibraries.

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该系统由几何处理模块、工艺处理模块、后置处理模块和子程序库组成。

The system includes geometry processing module, manufacturing technology module and subroutine program library.

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