flash-freeze
verb [ T ] uk/ˌflæʃˈfriːz/ us/ˌflæʃˈfriːz/
快速冷冻（食物）
to freeze something, especially food, quickly using very low temperatures, in a way that does not produce ice crystals
They make stews from fresh meat and vegetables and flash-freeze them for distribution. 他们用新鲜的肉类和蔬菜制作成炖菜，然后速冻分发。