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
Okay, we're all agreed.
好，大家的意见都统一了。
A bird is known by its note,and a man by his talk.
鸟以声闻，人以言知。
It was very old and precious even then.
却使在当时，它也属历史悠久的珍奇之物。