absorptance
/әb'sɒ:ptәns/
📖 中文释义
- n. 吸收比
- [化] 吸收比
📘 English Definition（英文释义）
- n 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