Vacuum-pumping
[化] 真空排气
🧩 词语组成解析
n. 抽水, 泵送\\n[化] 抽运
🗣️ 情景例句
It's a privilege to know you.
认识您是我的荣幸。
He cleans th badroom every day.
他每天都清理卧室。
We can offer you this in different levels of quality.
这产品我们有三种不同等级的品质。