这项新研究采用准实验设计，即从一个自然出现的情形获取数据，这种情形就是孩子们处在两种不同的纪律环境下。

This new study USES a quasi-experimental design to derive data from a naturally occurring situation in which children were exposed to two different disciplinary environments.

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本研究采用准实验研究的方法。

The study used quasi-experimental research methods.

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准晶体是1984年在实验中发现的。这种新型的物质引起了科学工作者极大的兴趣，并得到了广泛的研究。

Since the experimental discovery of quasicrystals in 1984, this new kind of materials has attracted much attention and has been extensively studied.

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