The choice of the knowledge of Curriculum, the medium of interaction between student and teacher is under the control of the society.

课程作为师生之间互动的媒介，课程知识的选择是在社会控制下进行的；

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As is not only to have directing sense on the construction technology of concrete, but also to have consulting value on the studying interaction between mixing machine and medium.

这不仅对制定混凝土施工工艺有指导意义，而且对研究混凝土搅拌机械的机构与介质之间的相互作用也有参考价值。

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Therefore interaction Hamitonian of the single mode light field with the medium is proportional to the fourth power of the annihilation operator plus creation operator.

因此，单模光场与此介质相互作用的哈密顿量正比于光场的湮灭算符与产生算符和的四次方。

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You don't have that kind of flexibility with IM, nor do I think should you - it's just the wrong medium for that kind of interaction.

ENGADGET: Interview with David E. Weekly, Founder of Coceve and www.IMsmarter.com

It is imperative that HR develop the critical skills to understand how to listen in this medium, but more significantly, understand the nuances of social interaction.

FORBES: The Rising Challenge Of Social Business To HR Departments

The very nature of the medium allows for feedback to be integrated into the plot, unlike on television where lead times make such interaction impossible.

CNN: Fast forward: Broadband drama