This research subject is done for engineering application, mainly about boundary condition analysis of mode calculation and analysis of vortex-excited response for barrel-shaped mast.

本文为实际工程应用课题，重点在于研究桅杆振动固有频率的边界条件分析和在风激励下的涡激振动响应的计算研究。

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Yet there has been very little research into this subject, in part because of the paucity of data.

然而目前来说几乎没有关于这个主题的研究，部分原因是由于研究数据的缺乏。

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This research is the subject of chapter 5.

这些研究将是第5章的主题。

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But I took this opportunity to research the subject.

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We will continue to review research on this subject.

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Because of revised ethical standards for human subject research, this kind of experiment cannot be replicated exactly.

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