An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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absorptivity-emissivity ratio
  وابر ِ درشما‌یی-گسیلا‌یی  
vâbar-e daršamâyi/gosilâyi
Fr.: rapport absorptivité-émissivité  

For a spatial object, the ratio between its absorption of solar radiation and its infrared emission.

See also: → absorptivity; → emissivity; → ratio.