Effusiometer
[化] 隙透计; 扩散计; 气体扩散计
🗣️ 情景例句
that will bring parents and teachers together once a week
让家长们及教师每星期一次
Nature abhors a vacuum.
自然界里是没有真空的。
No, I need to talk to the home office.
不，我得先跟总公司谈谈。