中英互译
population inversion
基本释义
- 人口倒置：在一个系统中，处于激发态的原子或分子的数量多于处于基态的原子或分子的现象。
双语例句
- The necessary population inversion can be achieved in a variety of ways .我们可以用各种方法来实现这种必要的粒子数反转。
- The possible mechanisms of population inversion under the average high temperature condition has been analysed.分析了可能导致高温条件下粒子数反转的机制。
- Chemical laser is characteristically energized by an exoergic chemical reaction which produces the necessary population inversion of lasing species.化学激光器是以释能化学反应提供能源，并且以化学反应产生粒子数反转为基础的。
网络短语
- threshold population inversion density临界粒子数反转密度；阈值粒子数反转密度
- saturation of the population inversion反转粒子数饱和
- distribution for population inversion粒子数反转分布
- population inversion lifetime粒子数反转寿命
- threshold population inversion阈值粒子数反转
英英释义
- In physics, specifically statistical mechanics, a population inversion occurs when a system (such as a group of atoms or molecules) exists in a state with more members in an excited state than in lower energy states. The concept is of fundamental importance in laser science because the production of a population inversion is a necessary step in the workings of a standard laser.