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抽真空的鲜鸡能放几天
更新时间: 2020-11-06 00:00:00  

鲜鸡真空包装后,可以延长到六天,抽真空减少包装内氧气含量,防止包装食品的霉腐变质,并延长保质期。

抽真空是制冷设备生产或维修过程中,充注制冷剂前的一个必不可少的重要工序。即用真空泵与制冷系统管路相连接(一般是高低压侧同时连接),将系统管路中的不凝性气体和水分等排除的过程。

关键词: 真空

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