其次，深入挖掘了校园心理环境研究的理论基础，力求为其建设提供理论依据和来源。

Second, the theoretical foundations of campus psychological environment research are deeply analyzed in order to provide academic bases for the construction of campus mental environment.

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本文中给今后此类机械的设计与计算奠定了理论基础，并为翻袋式离心机国产化提供了可靠的理论依据。

The calculation laid a foundation for the design of the machine of this kind and provided a credible basis for the production of the Filter Centrifuge in our country.

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本文构建新的英语教学模式的理论依据是：1、语言学的理论基础。

The theoretical bases of this paper for building the new model of the English teaching are: 1. Linguistic theoretical bases.

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There seems to be a doubt, a variety of doubts, about the foundations of what we can think about the basis of our opinions, that pervades theory, and is seen somehow or another to characterize its history.

有些事物，是我们思想的基础和看法的依据,但理论中却充斥着对它们的质疑，而这些质疑也被视为理论的特征之一。

耶鲁公开课 - 文学理论导论课程节选