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中文摘要：
产品数据交换技术是异构CAD实现协同设计的重要基础。为此，介绍了一种新的基于特征的CAD数据交换方法，以定义造型功能映射集合为基础实现数据交换，可保存高层设计意图；提出了基于特征数据交换的异构CAD协同设计系统。研究了特征数据交换、数据共享、协同设计Agent等关键技术；给出了实现该技术的方法。
英文摘要：
The product exchange data technology is an important base for a heterogeneous collaborative design. A new feature-based CAD data exchange technology is presented, which is based on mapping of modeling function set. This approach ensures efficient data exchange among heterogeneous CAD systems, and high-level design intent of designer is reserved. This paper put forwards a collaborative design system which based on the feature-based CAD data exchange. Some key technologies, modeling sharing, collaborative design agent are researched. Lastly,, collaborative design-implementing is proposed.
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