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本文介绍了一个基于特征技术和ＣＡＤ／ＣＡＭ集成的ＣＡＤ系统。从集成角度讨论了特征的定义和分类，具体介绍了该系统的结构、实现、应用情况和功能特色。
This article describes a CAD system based on feature technology and CAD / CAM integration. The definition and classification of features are discussed from the perspective of integration, and the structure, implementation, application and function of the system are introduced in detail.