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
Oh, you really had a bad day.
哦 你们真的没玩好。
He came at a bad time.
他来的不是时候。
To my surprise, he gave me the money immediately.
令我惊奇的是，他立刻把钱给了我。