基本解释[化学]受激发射跃迁英汉例句双语例句The relaxation rate of upper level is equal to the transition probability of stimulated emission.激光达到饱和强度时，上能级弛豫速率等于受激跃迁几率。stimulated emission transition更多例句词组短语短语stimulated emission transition probability 受激发射跃迁几率stimulated emission transition更多词组专业释义化学受激发射跃迁