Researchers have long known that greenhouse gases might help the layer recover by cooling the stratosphere, which slows the rates of chemical reactions that destroy ozone.

长期以来，研究人员已经了解到：温室气体通过对同温层的冷却作用，可以放慢破坏臭氧层的化学反应速度，因此也许会有助于臭氧层的恢复。

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Mainly used for human consumption such as freeze drinks, mix wines, coolfoodstuffs. and also used for chemical cooling, food processing, fisheries, poultry-processing, meat plants etc.

中雪管冰机常为人们日常生活所食用， 如冰镇饮料，调制酒水，保鲜，冷敷等，同时也用于食品加工，水产加工，家禽屠宰，肉制品加工等行业。

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Recycled cooling water; Corrosion; Scaling; Chemical treatment; Control.

循环冷却水；腐蚀；结垢；化学处理；控制。

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The chemical is kept pressurized as part of the cooling system in meat processing plants.

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