Cooling and heating of fermentation gas is done by the jacket.

发酵气的冷却或加热，均由夹套来完成。

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Intestinal gas is typically caused by the fermentation of undigested food, such as plant fiber, in the colon.

肠内气体主要由结肠内未消化的食物发酵产生，例如植物纤维。

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The greenhouse gas figure equates to 18% of man-made greenhouse gas emissions, largely thanks to the methane and nitrous oxide animals' "enteric fermentation".

畜牧业产生的温室效应气体，大部分由甲烷沼气和动物肠内发酵及粪尿处理产生的氮氧化物，总量占到人为产生温室气体的18%。

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