LED bulb delivers highly intense beam with an approximate lifetime of 100,000 hours.
LED灯泡提供了一个近似的100,000小时寿命高强度的光束。
The concept of the lasing lifetime of working substance in the solid dye laser is promoted to liquid dye laser, and a twin laser beam testing method to measure the lasing lifetime is presented.
把固体染料激光器工作介质激射寿命的概念推广到液体染料激光器中，同时提出了一种针对液体激光染料激射寿命的双激光光路测试方法。
The principles and advantages of measuring lifetime of atomic and molecular excited states using the beam-foil method are described.
本文阐述了束-箔方法测量原子、分子离子激发态寿命的原理和优点，阐述了我们的实验过程和得到的一些结果。
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