Two ways to keep fish for future use are canning and freezing. Two other methods are drying and smoking.

两种储存鱼用于将来食用的方法是罐装和冷冻，另两种就是干腌和熏制。

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Because smoking and direct drying processes are used both in industry and in private households, the guidance can also form the basis of consumer education programmes.

由于工业和私人家庭都采用烟熏和直接干燥工序，所以消费者教育方案也可以该指导为基础。

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Parts of PAH are possible human carcinogens formed during the combustion of fuel both in the smoking and in the direct drying processes involved in the preparation of food.

制备食品时的烟熏和直接干燥工序在燃烧过程中形成的部分多环芳烃可能是人类致癌物。

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