| 单词 | absorptance |
| 释义 | absorptance[ ab-sawrp-tuhns, -zawrp- ] / æbˈsɔrp təns, -ˈzɔrp- / noun Physics, Optics.the ratio of the amount of radiation absorbed by a surface to the amount of radiation incident upon it. Compare reflectance, transmittance. Origin of absorptance1930–35; translation of German Absorptionsvermögen.See absorption, -ance Words nearby absorptanceabsorbent cotton, absorbent vessel, absorber, absorbing, absorbing well, absorptance, absorptiometer, absorptiometry, absorption, absorption band, absorption chromatography Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for absorptanceabsorptance absorption factor/ (əbˈsɔːptəns, -ˈzɔːp-) / nounphysics 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 absorptanceSymbol: α Compare reflectance, transmittance Word Origin for absorptanceC20: absorption + -ance Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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