【摘要】 知识工程与CAD技术的结合已成为CAD技术发展的方向之一。提出了广义知识库的概念，给出了基于UG/KDA的广义知识库模型。在此基础上研究了广义知识库的构造方法，主要是采取产生式表示法和面向对象表示法，并给出示例验证该方法的实用性和可操作性。更多还原

【Abstract】 The integration of knowledge engineering and CAD technology is one of the developing trends of CAD technology. This paper brings up the concept of general knowledge base and gives its UG/KDA-based model. On the base of it, the paper discusses how to build general knowledge base model, mainly by the object-oriented way and by the production rule way. Meantime, it gives some examples to verify its practicability and usability.更多还原