Diffusion (vacuum)pump
[化] 扩散泵; 扩散真空泵
🧩 词语组成解析
🗣️ 情景例句
And the others. I do have it all.
还有其他的。我确实拍齐了。
It's two o'clock.
现在两点。
Wei Hua had a busy day yesterday.
昨天魏华很忙。