Introduces the basic principle of auxiliary design on axially-symmetric spare part with computer and tells the content of computer software as well as its program method and its stage.

本文介绍了轴对称零件计算机辅助设计的基本原理和计算机软件的内容及软件的设计方法、步骤。

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In addition, the hardware designing and the software programming, also the computer realization method, is studied, so the whole complex design process of the computer control system is studied.

另外研究了控制系统的硬件设计和软件编程及采用计算机控制的具体实现方法，较全面说明了复杂计算机控制系统的设计过程。

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The deficiencies in current methods of cylinder design are studied and a new method for CAD software development-Computer-Aided-Design with varible structure is presented.

本文分析了目前液压缸设计方法的不足，提出了一种开发CAD软件的新方法——计算机辅助变结构设计方法。

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