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
I liked the work. However, the firm is too small for me to widen my experience.
我喜欢那份工作。但那家公司太小，难以增加我的经验。
I learned English this morning.
我今天早上学英文。
Later, we ate our picnic under some trees.
后来，我们在树下吃野餐。