Transformer ratings can be increased from 25% to 66% by the addition of fans and pumps.

增加风扇和油泵可使变压器额定值增加25%到66%。

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No, it's very noisy. All the fans and pumps mane so much that we need to wear ear plugs.

没有，国际空间站很吵。所有的风扇和水泵制造噪音以至于我们需要戴耳机。

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Cascade drive is a kind of speed regulation with high feature and low cost for fans and pumps.

对风机和水泵类负载，串级调速是一种高性价比的节能调速方法。

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For example, rather than purchase expensive ultra-efficient motors, low cost opportunistic additions to old fans and pumps such as variable frequency drives and demand controls can deliver equal energy savings at a fraction of the cost.

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For example, three-fifths of the world's electricity runs motors, and half their shaft power runs pumps and fans.

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Along the way, officially-sanctioned buskers and street entertainers are on hand to amuse the crowds, and music pumps from speakers -- though it can't drown out the cheers of fans inside the arenas.

CNN: Park life: Games leave London with a happy golden glow