Ion gettering pump
[化] 离子吸气泵
🧩 词语组成解析
ion
['aiən]
n. <物>离子;
采煤, 采掘工作, 收气, 吸气, 吸气法(真空技术)
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
How did you get on in your exam?
你考得怎样？
One good mother is worth a hundred schoolmasters.
一个好的母亲顶得上一百个教师。
Here and here. And I can only move my arm as much as this.
这儿和这儿。我只能这样摆动手臂。