absorptivity-emissivity ratio vâbar-e daršamâyi/gosilâyi Fr.: rapport absorptivité-émissivité For a spatial object, the ratio between its absorption of solar radiation and its infrared emission. → absorptivity; → emissivity; → ratio. |
emissivity gosilandegi (#) Fr.: émissivité The ratio of energy radiated by a material to energy radiated by a black body at the same temperature. |