Reciprocating vacuum pump
[化] 往复式真空泵
🧩 词语组成解析
[医] 交互的, 往复的
pump
[pʌmp]
n. 抽水机;打气筒;泵;轻软舞鞋;
v. 用泵输送 ;涌出;急速摇晃;盘问;
🗣️ 情景例句
Look, who's here, Peter!
看，这是谁，彼得！
It's on of his favorite relaxations.
这是他最喜欢的消遣之一。
Could I have this sample free of charge?
这样品可以免费送我吗？