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提供了用多种计算机语言（包括ＡｕｔｏＣＡＤ软件）和优化设计、相似设计等方法，实现横流风机的计算机辅助设计的途径。介绍了系统的主要设计思想，阐述了用ＡｕｔｏＬＩＳＰ语言绘制机械工程图纸的技巧。
It provides a means of computer-aided design of cross-flow fans using a variety of computer languages (including AutoCAD software), optimization design, and similar design methods. The main idea of the system is introduced, and the skill of drawing mechanical engineering drawings in AutoLISP language is expounded.