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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Specifically, the 3C wants governments to set maximum permissible levels for a global temperature increase and define greenhouse gas reduction targets by 2030 and 2050.

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