| 单词 | emissivity |
| 释义 | emissivity[ em-uh-siv-i-tee, ee-muh- ] / ˌɛm əˈsɪv ɪ ti, ˈi mə- / noun Thermodynamics.the ability of a surface to emit radiant energy compared to that of a black body at the same temperature and with the same area. Origin of emissivityFirst recorded in 1875–80; emissive + -ity Words nearby emissivityemission, emission nebula, emission spectrum, emissions trading, emissive, emissivity, emit, emittance, emitter, EMLA, Emlyn Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for emissivity
British Dictionary definitions for emissivityemissivity / (ɪmɪˈsɪvɪtɪ, ˌɛm-) / nouna measure of the ability of a surface to radiate energy; the ratio of the radiant flux emitted per unit area to that emitted by a black body at the same temperatureSymbol: ε 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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