In order to Drawing shapes of Circuit Drawing rapidly and accurately, design the qualified Electronic pattern, using computer graphics software CAD skillfully is necessary. The paper took Flange Circuit drawing for example, described the methods and techniques of Circuit Drawing in CAD, meanwhile depicted the application of Block in Circuit drawing. In the actual production, the design efficiency of Circuit drawing can be greatly improved by the application of computer graphics software CAD. It is necessary to master correct methods and certain skills.%为快速正确地绘制电路图,设计出合格的电子图样,熟练地应用计算机绘图CAD软件是十分必要的.文中以一电路图为例,描述了CAD绘制电路图的方法与技巧,同时描述了块在绘制电路图时的应用.在生产实际中,应用计算机绘图软件CAD能大大提高电子、电路图的设计效率.掌握正确的方法与技巧是十分必要的.
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