Sprengel pump
[化] 高真空泵
🧩 词语组成解析
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
but it's too early to know for sure.
但我现在还不能决定。
Just a moment.
等一会儿。
We need seven of these.
我们要七个这种的。