The experimental results of black body radiation 黑体辐射的实验规律
One of the most fundamental concepts for understanding heat radiation is that of a black body. 理解热辐射的最基本概念之一是黑体概念。
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. 黑色物体在恒温条件下是温度的完全辐射器，因为到达和离开该物体的辐射量必须保持平衡。