This represents an attempt in introducing quaternion methods in the study of cases involving space engagement.

这是试图把四元数方法引入空间啮合原理研究的一种尝试。

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Taking into account the questionnaire study by the limited information, this study also used a qualitative study of cases in interviews and observation of law.

考虑到调查问卷所考察信息的有限性，本研究还使用了质化研究中的个案访谈与观察法。

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In half the cases, the experimenters patted the students lightly on the back of the shoulder for about one second while providing verbal instructions about the study.

在一半的案例中，实验者在提供关于研究的口头说明的同时，会轻轻拍拍学生的肩膀，持续了大约一秒钟的时间。

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But a three-year study showed that beetles like to feed more on the transgenic plants, increasing cases of wilt disease.

VOA: special.2009.10.27

A recent study showed that RTS,S reduced clinical cases of malaria by fifty-three percent over an eight month follow-up period.

VOA: special.2010.04.20

While formal lectures and study of business cases remain vital components, growing numbers of academic institutions are putting more emphasis on interactive learning.

CNN: Course delivery explores new paths

In reality, a 2010 study of more than 95, 000 cases of CPR found that only 8% of patients survived for more than one month.

WSJ: A Doctor on How Physicians Face the End of Life

The study found less cases of eczema among children receiving the bacteria.

BBC: Baby recruits fight eczema battle