【laser激光 ： light amplification? by stimulated emission of radiation? 受激輻射光放大】 amplification [U] 放大 amplify vt. ①放大 stimulated?a. 受激的 emission [U]①（光、熱、氣の）發(fā)出，射出，排放 radiation ② 輻射的熱or能量 【補(bǔ)】：transition [C]躍遷，轉(zhuǎn)變 [a change of an atom, nucleus, electron from one quantum state to another, with emission or absorption of radiation] scattering n. （電磁波or粒子の）散射 [the process in which electromagnetic radiation or particles are deflected or diffused]