This paper introduces mainly the technical realization of computer aided design of refrigerator condenser.On the basis of refrigerator condenser design with Visual C++6.0，this interactive and practical program implements the parametric drawing by using the development tool ObjectARX of AutoCAD R14.0.The whole program,which has a friendly user interface,the parametric design and high efficiency of drawing,impenetrats the modularization idea.In a word,this program has a broad application value in the design of refrigeration system parts.%主要介绍了冰箱冷凝器CAD的实现技术。该交互应用程序在利用Visual C++6.0进行冷凝器参数化设计的基础上，用AutoCAD R14.0的二次开发工具ObjectARX实验了参数化绘图。整个程序贯穿了模块化设计思想，具有良好的人机交互界面，实现了参数化绘图，提高了绘图效率。总之，该程序在制冷系统部件设计方面有很强的实用性。
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