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 [核] 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
initial population inversion 初始粒子数反转
population inversion 粒子分布倒置
population inversion ratio 粒子数反转比
population inversion level 反转粒子数密度
Being very high intensity, this focus induces a population inversion in the oxygen atoms, ensuring that there are more excited than non-excited atoms.
在高强度下，这种聚焦会使氧原子的粒子束反转，确保了激发的原子多于未被激发的原子。
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。
When decay rate in the coupling channel is greater than that in the probe channel, the incoherent population pumping in the probe channel can create the gain without inversion.
当耦合路径上的衰变率大于探测路径上的衰变率时，探测路径上的抽运导致了非逆转增益现象的产生。
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