Then the researchers started keeping the animals in clean cages. Really clean cages, in which the bedding, food, and water are sterilized.

研究人员将它们放入洁净的笼中，这可是真正的一尘不染——它们的寝具、食物、饮水全都是经过消毒无菌的。

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Explanations are given to the processing date of sterilized milk, pasteurized milk, sour milk, etc. based upon the file issued by the National Technical Committee of Food Industry Standardization.

依据全国食品工业标准化技术委员会的文件精神，对灭菌乳、巴氏杀菌乳、酸牛乳等产品的生产日期进行了释义。

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Before it's canned, food needs to be sterilized to remove all the potentially dangerous microorganisms - especially those that can live inside a can without oxygen.

在装罐之前，食品需要消毒，消除所有潜在的不安全微生物，特别是那些能够在无氧条件下生存的微生物。

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