Vacuum refining
[机] 真空精炼
🧩 词语组成解析
[计] 精炼, 提纯\\n[化] 精炼; 精制; 提炼; 匀料; 匀浆
🗣️ 情景例句
I need to confirm my reservation.
我要确认我的预定。
I apologize.
我表示歉意。
To know everything is to know nothing.
样样通，样样松。