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
You really need to shed some fat.
你真得减减肥了。
Speed is the soldier's asset.
兵贵神速。
But he wanted to see the old folk again and to visit my mother's grave.
但是，他想看一看家乡父老乡亲，为我的母亲扫墓。