There are two types of activities: knowledge activity and actual activity.

“知识活力”是怀特海智育思想的核心概念。

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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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The main aim of this activity is to improve our school members' knowledge about the importance of exercise.

这次活动的主要目的是提高我们学校成员对运动重要性的认识。

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The Times Higher Education World University Rankings employ 13 separate performance indicators, which it says makes it the only world rankings to examine all the core missions of the modern global university - research, teaching, knowledge transfer and international activity.

BBC: Glasgow University

Once you have people sharing knowledge and collaborating, this activity generates its own data, and from a higher level you can start observing patterns.

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Esri, for the uninitiated, is a market leader in geo-planning software, and has been helping companies and organizations track activity through geographic knowledge since 1969.

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