本文采用历史研究和系统研究两种方法。

In this thesis, both a historical and a systematic analysis are adopted as method.

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本文采用规范研究和实证研究两种方法进行研究。

This article USES standardized method and empirical method to research.

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本课题综合采用了理论分析和实证研究两种方法。

This paper USES the theoretical analysis and empirical studies.

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So we've looked at how to solve square root we've, looked at two problems, I've tried to instill in you this sense of paranoia which is so valuable, and now we're going to pull back Python and return to something much simpler than numbers, and that's Python. All right?

我们已经研究了如何去求平方根,研究了两种方法,我一直在尝试着给你们逐渐灌输,要偏执的理念，这样的理念非常有价值，现在我们回过头来去学习一些,比数字更简单的东西，也就是,对不对？数学问题很难？

麻省理工公开课 - 计算机科学及编程导论课程节选