这工厂用电作动力。

The factory is worked by electricity.

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现在，它们被用作能够造出90%的工厂用电的发电机的原料。

Now, they are used to power generators that produce 90 percent of the plant's electricity.

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二次计量误差是造成工厂用电计量平衡困难的原因之一。

The secondary measurement error is one of the causes which make difficult for the balance of plant power consumption measurement.

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