单词：air pump
[化] 气泵; 抽气机; 空压机
space; also, a pump to condense air or force it into a closed space.
A pump used to exhaust from a condenser the condensed
steam, the water used for condensing, and any commingled air.
air pump的用法和样例：
例句
- Vacuum packaging is produced by pumping all the air out of the package.真空的包装都是用抽气机把空气抽出的。
- vacuum pump真空泵
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