信息产权理论是对社会实践的回应，是对现有知识产权理论的扩展。

Information property theory meets with the needs of social practices and expands the existing intellectual property theory.

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本章主要是探讨基于学习过程记录的网络课件理论对测试理论的扩展。

It mainly talks about the extending of testing theory in the courseware concerning about learning process record.

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而可变精度粗糙集作为对经典粗糙集理论的扩展，体现了等价类与集合的重叠度程度上的差别。

As the extension of rough set, variable precision rough set reflects the difference of degrees of overlap of kinds and sets.

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A lot of Freudians have tried and made a research program of extending their ideas scientifically, bringing them to robust scientific tests.

许多精神分析的支持者们,都试图建立研究项目,来科学地扩展他们的理论观点，使得这些理论观点得到了大量的科学研究。

耶鲁公开课 - 心理学导论课程节选

I call this the broaden-and-build theory of positive emotions because positive emotions appear to broaden people's momentary thought action repertoire and build the enduring personal resources.

我称其为积极情绪的扩建理论,因为积极情绪似乎能扩展人们的瞬间想法,和动作指令库并建立持久的个人资源。

哈佛公开课 - 幸福课课程节选