radiant energy

Such a surface would reflect no radiant energy, and hence would appear black in color.

这种表面不会反射辐射能, 因此呈现黑色.

No surface can absorb more than all of the radiant energy which strikes it.

表面所能吸收的能量不可能大于投射到它上面的全部辐射能.

Radiant energy entering the opening is in part absorbed by the interior walls.

进入小孔的辐射能,一部分为内壁所吸收.

The amount of radiant energy needed to expose a photographic film.

感光胶片上曝光所需的辐射能的总量.

We consider radio waves as radiant energy.

我们把无线电波看作是辐射能.

For a fixed set of conditions, any free surface emits radiant energy of varying wavelengths.

在一定的条件下, 任何自由表面均会散发各种波长的辐射能.

Radiant energy is also called energy.

辐射能也称作光能.

Material energy can be transformed into radiant energy only in units of a certain size.

物质能量只能以一定大小的单位转变为辐射能量.

They give off discrete amounts of radiant energy.

它们放出不连续的辐射能量.

It is not until the radiant energy falls upon matter that it becomes heat energy.

直到幅射能落到物质上以后,它才能变成热能.

Carbon black is an opacifier which prevents radiant energy transmission to the interior of the propellant.

炭黑是不透明的,可以防止辐射热传到推进剂内部.

Quantum theory proposes that radiant energy is transmitted in discrete units.

量子理论的提出辐射的能量能传递离散的单位.

Different kinds of radiant energy have certain fundamental characteristics in common.

不同种类的辐射能却有着某种共同的基本特性.

We know that light is a variety of radiant energy.

我们知道光是一种辐射能.

Clouds return radiant energy to the surface primarily via the atmospheric window.

云主要通过大气窗区向地表辐射能量.