The theoretical model for a liquid laser is established,the influence of working parameters on the energy conversion efficiency and medium thermal effect is analyzed,and the energy conversion efficiency,the far field intensity and the laser beam luminance distributions at different absorbing coefficient and different velocity of flow are simulated.
建立了液体激光理论模型,分析了工作参量对系统能量转换效率与介质热效应的影响;模拟了系统在不同吸收系数和不同流速下的能量转换效率,远场光斑分布以及激光束亮度分布。
Research results indicate that the velvet, the carbon fiber and the dispenser cathode all have the ability to generate a few kilo-ampere multi-pulsed beams with brightness better than 3×107A/(m·rad)2.
研究结果表明,天鹅绒阴极产生的猝发强流双脉冲电子束亮度优于1×108A／(m·rad)2,而直立碳纤阴极产生的强流三脉冲电子束的亮度也优于 3×107A／(m·rad)2,并有进一步提高的可能。
The central beam will be reduced in brightness because it is tracking on both land and pits.
主光束亮度将降低，因为它在台和坑上进行跟踪。
double-beam grating spectrophotometer
双光束光栅分光光度计
Control Light. Adjust light levels up or down.
操控光亮：使周围的亮度变亮或变暗。
double - beam spectrodensitometer
双光束分光光密度计
photometer head with equality of brightness
等亮度棱镜的光度头
When viewed using a bright lamp, the beams of light can be seen as spectra of colors.
在明亮的聚光灯光源下，光束会还原为光谱色彩。
(of light) lacking in intensity or brightness; dim or feeble.
（灯光）缺少亮度或光亮；黯淡的或微弱的。
split-beam photometric analyzer
分裂光束光度分析仪
micellar solubilization spectrophotometry
胶束增溶分光光度法
ultraviolet double beam spectrophotometer
紫外双射束分光光度计
screen(a lamp,light,etc)to reduce its brightness
遮挡（灯、光等）以减弱亮度
Spectrophotometric determination of cobalt in bright nickel plating bath
分光光度法测定光亮镀镍溶液中的钴
Artificial light in an intensely bright and broad beam.
泛光高亮度和宽度的人工光
The intensity of light per unit area of its source.
亮度每单位发光区的光的强度
The light in this world is purest, brightest silver, brighter than the flash of an arc welder.
这个世界的光线是极度纯粹、度明亮的银光，比电焊闪光更亮的光线。
bright and dark method
亮暗法（日光牢度测试法,灯光亮时暗的进行照射）
When the laser beam goes through the diffraction grating, it is split up into a central bright beam plus a number of side beams.
当激光束射入衍射光栅后，被分成一个中间的明亮光束和一些处于旁边的光束。
The signal beam can be recreated by illuminating the medium with a beam identical to the original reference beam.
通过用和原始参考光相同的光束来照亮感光介质可以还原信号光。