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
That's why the new community center is a good idea.
这就是为什么说新的社区中心是个好主意。
Do you want to airmail it or not?
你想发航空信吗？
Above the surface of the water, the towers rise to a height of nearly 700 feet.
塔身高出水面将近700英尺。