Due to the specialty, REF relay is a current relay with very high sensitivity or a voltage relay with very low acting power.

由于零差保护的特殊性，零差继电器本身就是一只灵敏电流继电器或动作功率很小的电压继电器。

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When the array is complete, it will have 350 dishes that, by acting in concert, will have the power of a single instrument 700 metres across.

当这个阵列完成的时候，它将包含350个碟形天线——这些天线行动一致，到那时每一个装置的功率覆盖范围将达到700米。

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But the beauty of the images, the power of the acting and the compulsive qualities of the drama are accessible to any engaged viewer.

不过对于任何一位投入的观影者来说，影像的绮丽、演绎的力量以及影片那摄人心魄的品质都是可以被感受到的。

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Then,the car automatically switches to a gas-powered engine, acting as a generator that can power through 483 more kilometers.

VOA: standard.2010.07.30

In addition to drawing electricity, plugged-in cars would also be able to send electricity stored in their batteries back into the grid as needed, acting like tiny power plants.

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"It requires a real vision and acceptance that this strategic partnership is the only alternative to a world in which we break up into different poles of power, acting as rivals to one another, with every single dispute in the world being played off against these different poles of power, " he said.

BBC: Blair-Putin tensions on sanctions

The U.S. should start acting as a true Great Power.

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