Vacuum diffusion pump
[化] 真空扩散泵
🧩 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
You want to bet?
想打赌吗？
You have to change at chicago station.
你必须要在芝加哥站转车。
unlike, say, a buyer of goods, cannot complain that the law is loaded against him.
但是储户不能像货物的买主那样来抱怨法律对自己不利。