The composition of the computer aid design system for pneumatic conveying is analyzed, and its design method as well as the functions and characteristics are presented.

对气力输送计算机辅助设计系统的构成进行了分析，介绍了系统的设计、开发方法，以及系统功能和特点。

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Imitate the process of manual design and use computer to aid the design with blanking die CAD system.

冲裁模cad系统设计，主要是模拟模具手工设计的过程，实现计算机辅助设计。

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This article deals with the methods and procedures of design of control system on the basis of modern control theory and with the aid of electronic computer for design computations.

本文介绍了根据现代控制理论利用电子计算机进行控制系统设计的步骤和方法。

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