Third, the doctrine is not a legal document, can not play a direct effect.

第三，该学说并非法律文件，不能发挥直接效力。

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Based on the doctrine theory and cognition theory the system stresses the guidance effect of teaching designs in the system which is educated by the long-range of theory.

系统以建构主义理论、认知理论为依据，强调了教学设计理论在远程教育系统中的指导作用。

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This part mainly introduces the theoretical foundation of the doctrine of equivalents and estoppels and the effect to patent infringement judging.

本部分主要介绍了等同原则和禁止反悔原则的理论基础和对专利侵权判定的作用。

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Laws extending the traditional "castle doctrine" are in effect in 32 states, according to the Association of Prosecuting Attorneys, which counts as members about 1, 000 prosecutors, many of them in larger jurisdictions.

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In his opinion once it was determined that activity was, in fact, educational as defined by the IRS and did not have the effect of benefiting a private interest, it did not violate the private benefit doctrine as we described.

CNN: AllPolitics - Ethics Transcript