Undulators
(undulator 的复数) [电] 波纹印码机
🗣️ 情景例句
Now stand up, please.
现在站起来。
I'm not accustomed to that kind of social situation.
我不太习惯那种社交场合。
Oh, by the way, there was a telephone call for you.
啊，顺便说一句，有你一个电话。