a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance; the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber;
"absorptance equals 1 minus transmittance"
例句
A beam ethereal, sullied, and absorpt! 在虚无与神圣的中间！
The solar absorptance changed obviously,while the emittance has little change after irradiation. 材料辐照后太阳吸收率发生明显变化,而辐射率几乎不发生变化。
With increased irradiation time,the surface roughness and solar absorptance are increased. 随着辐照时间的增长,材料表面粗糙度增加,导致太阳吸收率增大。
Measuring Weak Absorptance of Optical Thin Films with Laser Calorimetric Technique[J]. 引用该论文 李斌成;熊胜明;Holger Blaschke;Detlev Ristau.
Finally, we have studied the effect of the variation of absorptance and the distribution of incident energy density on the relevant process. 对于吸收率的变化与脉冲激光能量密度的分布对于相应过程的影响 ;进行了分析讨论 .
This paper discusses the process of degradation catalyzed by titanium, which absorpt light. 本文系统综述了氧化钛吸附对光催化降解过程的影响。
