full radiator

美 [fʊl ˈreɪdieɪtər]英 [fʊl ˈreɪdieɪtə(r)]
  • 全辐射体;黑体;全辐射器
full radiatorfull radiator

noun

1
a hypothetical object capable of absorbing all the electromagnetic radiation falling on it
a black body maintained at a constant temperature is a full radiator at that temperature because the radiation reaching and leaving it must be in equilibrium
Synonym: black body blackbody

数据来源:WordNet