population inversion

基本解釋

• [核] 粒子數反轉；粒子分布倒置；居量反轉

英漢例句

雙語例句

• Being very high intensity, this focus induces a population inversion in the oxygen atoms, ensuring that there are more excited than non-excited atoms.
  在高強度下，這種聚焦會使氧原子的粒子束反轉，確保了激發(fā)的原子多于未被激發(fā)的原子。
• Microwave emission lines with anomalous intensity ratio would be produced when the relativistic electrons move through a, molecular cloud with a certain population inversion.
  相對論電子在某種粒子數反轉布居的分子云中穿行時，可以產生具有反常強度比的微波發(fā)射譜線。
• It is shown that the inversions of inherent pumping rate and spontaneous decay rate replace the inversion of population, and together help to realize lasing without population inversion.
  我們證明初始泵浦率和能級間自發(fā)輻射率的反轉代替了穩(wěn)態(tài)布居數的反轉，共同促進了無布居數反轉光放大，而且只要前兩者之一滿足就可以實現無反轉光放大。

• population inversion更多例句

詞組短語

短語

• threshold population inversion density 臨界粒子數反轉密度;閾值粒子數反轉密度
• population inversion lifetime 粒子數反轉壽命
• population inversion density 反轉粒子數密度
• atom population inversion 原子布局反轉
• maser without population inversion 無粒子數反轉脈澤

• population inversion更多詞組

專業(yè)釋義

物理學

• 粒子數反轉
• 布居反轉
• 幾率反轉

  In chapter 3, we studied the effects of spontaneously induced coherence on population inversion.
  第三章主要研究了自發(fā)輻射誘導相干對穩(wěn)態(tài)幾率反轉的影響。

• 布居數反轉

計算機科學技術

• 粒子分布倒置

機械工程

• 粒子數反轉
• 密數反轉