1·When the radiant energy of the sun falls on the earth, it is changed into heat energy, and as a result the earth is warmed.
当太阳的辐射能落在地球上时， 就变为热能，于是， 地球暖和起来了。
—— 《新英汉大辞典》
2·Solar energy is radiant energy that is produced by the sun.
所谓太阳能，就是太阳产生的辐射能。
3·Radiant energy is also called light energy.
辐射能也称作光能。
4·There is a decrease in the radiant energy received at a specified distance from the explosion .
在离开爆炸某一特定距离处接收到的辐射能便有所减少。
5·Other forms of radiant energy familiar to us are radio waves, infrared rays, ultra - violet rays, X rays, and gamma rays.
我们熟悉的另外一些形式的辐射能是电磁波，红外线、紫外线、X射线和伽玛射线。