Cooling and heating of fermentationgas is done by the jacket.
发酵气的冷却或加热，均由夹套来完成。
2
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。
3
The greenhouse gas figure equates to 18% of man-made greenhouse gas emissions, largely thanks to the methane and nitrous oxide animals' "enteric fermentation".