... 180光强度系数Coefficient of luminous intensity 其符号是R，单位是坎德拉每勒克司(ed"lx"),' 181逆反射系数Coefficient of retroreflection ...
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分子的消光系数等于入射光和透射光强度对数的比。
The molecular extinction coefficient is equal to the ratio of the log of the intensity of the incident and emergent light .
碰撞能量合并逆过程速率系数由原子密度和荧光强度比得到。
The measured density and fluorescence intensities have been used to obtain reverse energy-pooling rate coefficients.
前向散射能见度仪测量前向散射光强度，确定大气的消光系数，进而获得大气的能见度值。
The intensity of forward-scattered light is measured by the forward-scattering visibility sensor, which determines the extinction coefficient of the air, then the visibility can be obtained.
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