Cascade impactor
[化] 阶式碰撞取样器
🧩 词语组成解析
n. 撞击器；悬浮微粒的取样器
🗣️ 情景例句
And what does your father do?
令尊是做什么的？
If I can't go with you, what will you say?
如果我不能和你一起去，你怎么说？
Hello. You must be Dr Yang. How do you do? My name's David Lee.
嗨。你一定是杨博士吧。您好！我是大卫·李。