用液氮快速冻结食品是保鲜新技术之一。
Deepfreezing food by using liquid nitrogen is a new effective method to keep it fresh.
速冻食品是一种以低温快速冻结方式生产的食品。
Frozen food is a kind of food produced by low temperature and fast-freezing style.
速冻食品是一种以低温快速冻结方式生产的食品。
Frozen food is a kind of food produced by low temperature and fast-freezing style.
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