This paper puts forward the concept of "social citation network" and defines the semantic link under the network environment.

提出“社会引文网络”概念，对网络环境下的语义链接进行定义。

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The traditional way of document indexing based on subject words and can't work well in the network environment because of the lack of the ability of semantic deducing.

传统的采用主题词和关键词对文档进行标引的方法，由于不能提供语义推理而越来越不适合目前的网络环境。

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Within network collaborative design environment, real-time data exchange and feature semantic conformity become a key problem for collaborative design on semantic feature modeling.

在网络化同步协同设计环境中，如何实现用户系统之间的实时数据交换、维护特征语义的一致性，成为语义特征造型协同设计的关键问题。

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