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\\\"
造句
用作名詞(n.)
A blackbody radiator will therefore appear black in all inertial frames. 一個輻射黑體在一切慣性系中都呈現黑色。
Blackbody radiation always is the result of a succession of emission and absorption processes. 黑體輻射總是一系列發射和吸收過程的綜合結果。