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
taking these remarkable pictures
来拍摄这些突出作品
Nature is the best physician.
自然是最佳的医生。
When he learnt that he would be sent abroad, he returned to the farm and his father hid him until the end of the war.
当他了解自己将被派遣出国时，他逃回农场，父亲把他藏了起来，直到战争结束。