Nash pump
[化] 纳氏泵; 液封型真空泵; 纳氏泵
🧩 词语组成解析
n. 纳什（姓氏）
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
Change the light bulb, it's burnt out.
换一个灯泡吧，它烧坏了。
He'll always be indebted to you for what you've done.
他将总是为你做了的对你感恩。
He was feeling very tired.
他感到很累。