英语词汇vacuum line简单造句、意思、用法及例句-英语例句辞典

单词	vacuum line
例句	原声例句 PBS趣味科普 We take a piece of ice and put it in a vacuum flask, and pump out all of the modern air, the air we're breathing right now, using a vacuum line. 我们取一块冰，把它放在真空瓶里，用真空管抽出所有现代空气，我们现在呼吸的空气。
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