Diffractometers
(diffractometer 的复数) n. [光] 衍射计
🗣️ 情景例句
I have to remember to put them in the bag
我必须记得将它们放进袋子里
Quick feet and busy hands fill the mouth.
手勤脚快，嘴里吃饱。
He's in bed, doctor.
他在床上呢，医生。