Based on relative theory of knowledge activity system, the thorough research is progressed in this article about the technical intermediary system.

基于知识活动系统的相关理论，对技术中介系统展开了深入研究。

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Then, compared with several group of promiscuous words, this paper concludes the characteristic for the discipline not only as a knowledge system but also as research activity.

并对易于混淆的几组相关概念进行了比较，总结出作为知识体系的学科和作为研究活动的学科所具有的特点。

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Besides, the dissertation also detailedly design the knowledge taxon system in knowledge management system and virtual learning community based on activity theory.

此外，根据研究目标文章还详细设计了知识管理系统中的知识分类系统、基于活动理论的虚拟学习社区。

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