I now want to change to electromagnetic waves.
我想转到，电磁波的内容。
Now we will explain electromagnetic waves.
我们现在来解释电磁波。
Light is made up of electromagnetic waves.
光由电磁波组成。
Electromagnetic waves travel as fast as light.
电磁波传播的速度和光一样。
We all know, the light is electromagnetic waves.
我们都知道，光就是电磁波。
The Organism is the most sensitive receiver of electromagnetic waves.
生物体是最敏感的电磁波接收者。
So, the world must exist small volume of material than electromagnetic waves.
那么，世界上肯定存在比电磁波体积小的物质。
These waves is different to electromagnetic waves. It's a very complex question.
海波与电磁波不同，这是一个非常复杂的问题。
Astronomical research began to spread over the whole range of electromagnetic waves.
天文研究开始向整个电磁波谱范围延拓。
Electromagnetic waves travel with the speed of light, which is 300,000 kilometers per second.
电磁波，以光速传播，也就是30万公里，每秒。
Radar, light, and other electromagnetic waves transfer momentum and energy through space.
雷达、光和其它形式的电磁波将其动量和能量通过空间输送出去。
Radar, light, and other electromagnetic waves transfer momentum and energy through space.
雷达、光和其它形式的电磁波将其动量和能量通过空间输送出去。
Radar, light, and other electromagnetic waves transfer momentum and energy through space.
雷达、光和其它形式的电磁波将其动量和能量通过空间输送出去。
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