短語詞組短語transition angle frequency 轉(zhuǎn)折角頻率laser transition frequency 激光躍遷頻率caesium transition frequency 銫躍遷頻率transition frequency formula 轉(zhuǎn)移頻度公式the transition frequency formula 轉(zhuǎn)移頻度公式frequency transition 脈沖頻率的切換standard frequency transition 標(biāo)準(zhǔn)頻率躍遷frequency transition functions 頻率轉(zhuǎn)移函數(shù)low -frequency transition 低頻躍遷 返回 transition frequency