Vacuum preconcentrator
[化] 真空预浓缩器
🧩 词语组成解析
[化] 预浓缩器
🗣️ 情景例句
Oh, my pleasure.
噢！不客气。
Liberty often degenerates into lawlessness.
自由随便，经常堕落到无法无天。
The last lap! Wu Peng from Class 1 and Lin Tao from Class 3 were still neck and neck.
最后一圈！1班的吴鹏和3班的林涛仍然是并驾齐驱。