棕色脂肪细胞中有大量的线粒体——一种极小的细胞器，他们可以消耗氧气，燃烧膳食中的糖类来进行产热而不是把能量储存成为脂肪。

Brown fat cells are equipped with a large supply of mitochondria — tiny organelles that use oxygen to burn sugar from the diet to generate heat, rather than store the energy as fat.

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要特别注意热不稳定和光敏感的产品的储存。

Special attention should be paid to the storage of heat labile or photosensitive products.

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虽然目前的美国联邦法律以核废料的公吨数来定义亚卡山的储存容量，但其实真正的限制是热。

While existing federal law sets the capacity of Yucca in terms of tons of waste, the real limit is heat.

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