Packaged vacuum unit
[化] 小型真空设备
🧩 词语组成解析
packaged
[['pækidʒd]]
a. 包装过的
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
I don't get it.
我不明白。
The man who makes no mistakes does not usually make anything.
不犯错误的人往往也就是无所作为的人。
They come in cases of five.
它们是五个一箱。