| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024ab•sorp•tance (ab sôrp′təns, -zôrp′-),USA pronunciation n. [Physics, Optics.]- Optics, Physics, Opticsthe ratio of the amount of radiation absorbed by a surface to the amount of radiation incident upon it. Cf. reflectance, transmittance (def. 2).
- translation of German Absorptionsvermögen. See absorption, -ance 1930–35
Collins Concise English Dictionary © HarperCollins Publishers:: absorptance /əbˈsɔːptəns -ˈzɔːp-/, absorption factor n - a measure of the ability of an object to absorb radiation, equal to the ratio of the absorbed radiant flux to the incident flux. For a layer of material the ratio of the flux absorbed between the entry and exit surfaces of the layer to the flux leaving the entry surface is the internal absorptance
Etymology: 20th Century: absorption + -ance |