Vacuum preconcentrator
[化] 真空预浓缩器
🧩 词语组成解析
[化] 预浓缩器
🗣️ 情景例句
How about grating some cheese for our spaghetti dinner?
擦点奶酪今晚做意大利面条吃好吗？
The frog in well knows nothing of the great ocean.
井底之蛙不知汪洋大海。
I have a lot of problems.
我有很多问题。