Small transformers have enough tank surface to radiate all the heat caused by their losses without exceeding the permissible temperature rise.

小型变压器具有足够的油箱表面积来散发所有由损耗引起的热而使之不超过允许的温升。

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Studios these days are shooting for blockbusters, like Transformers 3, or small incredibly cheap art films, like The Kids are All Right.

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And because the industrial base for manufacturing the transformers and capacitors used in delivering electricity is relatively small, it could take months, maybe years, to fully restore service.

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