Demonstration unit
[化] 示范装置
🧩 词语组成解析
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
When you're ready to get off, remember to press the button near your seat.
当你要下车时，记得按你座位旁的按钮。
I'm going to show him how to cook.
我正要指点他如何做饭。
No, I think it is going to be mailed to your local branch.
不，寄到分社。