基本解释[化學]受激發射躍遷英汉例句雙語例句The relaxation rate of upper level is equal to the transition probability of stimulated emission.激光達到飽和強度時，上能級弛豫速率等於受激躍遷幾率。stimulated emission transition更多例句词组短语短語stimulated emission transition probability 受激發射躍遷幾率stimulated emission transition更多词组专业释义化學受激發射躍遷