Diffusion (vacuum)pump
[化] 扩散泵; 扩散真空泵
🧩 词语组成解析
🗣️ 情景例句
OK. You go out and get a drink of water at the fountain.
好。你出去在饮水机那儿喝点水吧。
Kinsman helps kinsman,but woe to him that hath nothing.
亲人帮亲人，无亲来帮愁煞人。
Can I show you around.
我来带你四处看看好吗？