热辐射密度以核爆点距离平方倒数的速度衰减，爆炸、冲击波、致电离辐射效应的衰减速度则更快。
The intensity of thermal radiation decreases only as the inverse square of the distance from a nuclear detonation, while blast, shock, and prompt ionizing radiation effects decrease more rapidly.
在封闭腔，对理想的四能级激光系统，无辐射衰减速率为零时微腔激光器的光输出特性是线性的。
In the closed microcavity of an ideal four-level laser system, when nonradiative depopulation is zero, the light output property of the microcavity laser is linearly.
在封闭腔，对理想的四能级激光系统，无辐射衰减速率为零时微腔激光器的光输出特性是线性的。
In the closed microcavity of an ideal four-level laser system, when nonradiative depopulation is zero, the light output property of the microcavity laser is linearly.
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