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
It was dumb of you to say that.
你说那种话真的是太愚蠢了。
He's a composer of serious music.I like his music a lot.
他是的一个严肃音乐的作曲家，我非常喜欢他的音乐。
It's running after a cat.
在追一只猫。