只需厨宝（KitchenAid，美国著名厨房用具品牌——译注）搅拌器，同时配以液氮罐和奶油，就能把牛奶、糖和水果这类简单的配料在不到一分钟的时间里变成按需定制的冰淇淋。
Using KitchenAid mixers tricked out with liquid nitrogen tanks, creameries turn simple ingredients like milk, sugar and fruit into made-to-order ice cream in under a minute.
美国的天花病毒样本包括来自英国、日本和荷兰的样本，被存储于液氮中。
The U.S. smallpox viruses, which include samples from Britain, Japan and the Netherlands, are stored in liquid nitrogen.
美国的天花病毒样本包括来自英国、日本和荷兰的样本，被存储于液氮中。
The U.S. smallpox viruses, which include samples from Britain, Japan and the Netherlands, are stored in liquid nitrogen.
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