“辐射能”造句
正如在1.21中所指出的,在总能量中,
辐射能仅占很少的一部分.
As indicated in 1.21, the radiation energy is a very small proportion of the total energy.
这种表面不会反射
辐射能, 因此呈现黑色.
Such a surface would reflect no radiant energy, and hence would appear black in color.
进入小孔的
辐射能,一部分为内壁所吸收.
Radiant energy entering the opening is in part absorbed by the interior walls.