Diffractometers
(diffractometer 的复数) n. [光] 衍射计
🗣️ 情景例句
Her enthusiasm died away.
她的热情逐渐消失了。
He told me to take these pills every four hours.
他告诉了我每4小时吃一次这些药片。
And anyone who gave more than a passing thought to the bottom confines of the oceans probably assumed that the sea bed was flat.
凡是稍稍想过大海海底的人大概都会认为海底是平坦的。