介绍了利用钷- 147模拟废水调试中、低放废水处理系统的实验情况。

An experimental study by using 147 Pm simulative radioactive liquid waste to test a low and medium level liquid waste treatment system was described.

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结果表明：（1）在低放废水排放影响下，一个相对稳定的特定生态系统已经生成；

On basis of obtained results the following conclusions were made: (1) In consequence of controlled releases of low level radioactive -waste water, a steady specific ecosystem had formed.

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从现在开始，越来越多由他们生产的汽车将会使用最新技术以实现尾气低排放或者零排放。

From now on, an increasing proportion of the vehicles they produce will use the latest technology to achieve low or zero emissions.

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Please lower your brows and draw them together.

请放低你的眉毛，将他们拧在一起。

耶鲁公开课 - 心理学导论课程节选

Satan finds it ignominious and shameful to lower himself to God, to bow and sue for grace with suppliant knee and deify His power, but this kind of submission is shameful not because it's simply always shameful so to debase oneself.

撒旦认为对上帝放低身段，屈膝承欢，并认可他的力量实在是可耻的，但是这种屈从之所以是耻辱,并非是因为通常身段被贬低时会感到耻辱。

耶鲁公开课 - 弥尔顿课程节选