Three types of methods for quantum chemical calculations have been proposed according to the correlation effects.

根据相关效应，建议将分子的量子力学计算方法分为三类。

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To estimate more accurately the electron correlation effects, one has to calculate to higher orders and check he convergency of the series.

要准确计及电子相关效应，还需通过作更高阶展开，以考察级数的收敛性。

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In differential mode, the effects of both SA and ionosphere are substantially removed, and the correlation time is reduced to about 1 minute.

为达到实时应用的效果，本文利用了差分定位方式，对应的观测时间就可减少到1分钟以内。

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Michael Morgan, an experimental psychologist at Sussex University, admits that there are holes in the experimental record that need to be filled before the link between the drug and nasty long-term effects moves from correlation to causation.

ECONOMIST: A scientific row has broken out over the effects of Ecstasy