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
There is not a shadow of a doubt that they did it.
毫无疑问，是他们干的。
One man makes a chair and another man sits in it.
坐享其成。
You see, on the morning of the murder, the 8 o'clock train did not run at all.
您看，在凶杀发生的那天早晨，8点钟的那次车根本没有发。