Vacuum preconcentrator
[化] 真空预浓缩器
🧩 词语组成解析
[化] 预浓缩器
🗣️ 情景例句
Let's go to the fraternity party.
咱们去兄弟会吧。
Will you plan to join me for dinner?
你要跟我一起吃饭吗？
It is because his feet move on, but his head stays still.
这是因为他的脚动了，而他的头保持着静止。