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为了满足航空机载设备壳体类零件集成制造的需求，建立了基于特征和STEP标准的零件集成信息模型，以此为基础在UG II 平台上利用UG/Open API接口开发了一个基于特征的CAD系统。该系统为制造后续环节提供较完备的零件设计和制造信息，便于实现零件设计、制造、测量的集成。
In order to meet the requirement of the integrated manufacturing of airborne equipment shell parts, a part information model based on feature and STEP was established. Based on this, a UG-Open API was used to develop a feature-based CAD system. The system for the manufacture of follow-up to provide more complete part design and manufacturing information, to facilitate the design, manufacture, measurement integration.