平均寿命的倒数1/τ称为跃迁速率,它表征跃迁过程的快慢速度。原子自发跃迁的跃迁速率约为108～109/秒，激发态平均寿命约为10-8～10-9秒,几千度高温下原子发光主要是外层电子(价电子)自发跃迁的结果，天然放射性中的γ射线则是原子核自发跃迁的产物。
Conclusions: The primary process of cellular LPBMmight be the key process, and the transition rate equation of the primary processmight be used to study the dose relationship of cellular LPBM.
结论：细胞LPBM的原初过程可能是其关键的过程，原初过程的跃迁速率方程可以用于讨论LPBM的剂量关系。
参考来源 - 细胞低强度激光光生物调节作用的关键过程·2,447,543篇论文数据，部分数据来源于NoteExpress
通过实验表明磷酸盐玻璃在制备过程中引进的水，与无辐射跃迁速率的增加有直接的关系。
Experimental research indicates that the water introduced during the preparation of phosphate glasses is directly responsible for the enhancement of nonradiative transition probability.
激光达到饱和强度时，上能级弛豫速率等于受激跃迁几率。
The relaxation rate of upper level is equal to the transition probability of stimulated emission.
强探测场与弱跃迁进行共振耦合产生两个修饰态，修饰态间距远大于原子衰减速率。
The strong probe field is coupled to the strong transition and creates two dressed states, the level spacing of which is far larger than the atomic decay rates.
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