Not fluctuation shock when first work, because motor regorged, please put the power cord head change.

初次工作时勿上下振击，因电机倒转，请将电源线头调换一下。

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When the system is confined well, the change of observation water level has a linear relation with water head change.

在系统封闭很好的情况下，观测水位的变化基本与水头的变化呈线性关系。

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Verified by simulation results reliable accuracy of calculated results can not be guaranteed for small head change convergence index unless the error of water balance is small too.

模拟结果同时证实，除非水均衡误差也相当小，否则水头变化收敛指标较小时收敛的计算也不能保证计算结果有可靠的精度。

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Philosophers and psychologists knew for a long time that getting smacked in the head could change your mental faculties; that diseases like syphilis could make you deranged; that chemicals like caffeine and alcohol can affect how you think.

哲学家和心理学家在很久以前便知道,头部受到重创,会改变你的心理官能,像梅毒这样的疾病可以让你精神错乱,像咖啡因和酒精这样的化学药品,可以影响到你的思维

耶鲁公开课 - 心理学导论课程节选

Then again you can change this pattern to turn it on its head

同样的，你也可以倒过来，

I will 课堂 - SpeakingMax英语口语达人

In preparation for the changing state of our climate, Masters and the staff at Wunderground.com are planning to add more green content and are searching for a full-time meteorologist to head their climate change site.

FORBES: Weather Underground unveils new look

And it calls on the insurance sector to help our country adapt, and to tackle the problem of climate change pollution head-on.

FORBES: Climate-Proofing The Insurance Industry

After the takeover goes through the current board will stay in place, as will manager Liam Daish, although his title will change to head coach.

BBC: Fan website agrees club takeover