短語(yǔ)詞組短語(yǔ)threshold population inversion density 臨界粒子數(shù)反轉(zhuǎn)密度;閾值粒子數(shù)反轉(zhuǎn)密度population inversion lifetime 粒子數(shù)反轉(zhuǎn)壽命population inversion density 反轉(zhuǎn)粒子數(shù)密度atom population inversion 原子佈侷反轉(zhuǎn)maser without population inversion 無(wú)粒子數(shù)反轉(zhuǎn)脈澤amplification without population inversion 無(wú)反轉(zhuǎn)放大average population inversion 平均粒子數(shù)反轉(zhuǎn)population inversion level 反轉(zhuǎn)粒子數(shù)密度distribution for population inversion [核]粒子數(shù)反轉(zhuǎn)分佈 返回 population inversion