| 1. | Every body radiates heat in the form of electromagnetic waves .
每一物体都以电磁波的形式辐射热。 |
| 2. | The electromagnetic spectrum covers an enormous range of frequencies and energies .
电磁波谱包括极大的频率和能量范围。 |
| 3. | The electronmagnetic wave is produced by microwave tubes called klystrons .
电磁波是由一种称为速调管的微波电子管产生的。 |
| 4. | 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。 |
| 5. | Several different names have emerged to characterize different parts of the spectrum .
几个不同的名称用来表示电磁波谱的不同部分。 |
| 6. | An accelerated charged particle radiates energy in the form of an electromagnetic wave .
作加速运动的电荷会以电磁波的形式辐射能量。 |
| 7. | We have already established that light may be treated as a transverse electromagnetic wave .
我们已经论证过可以把光当横电磁波来处理。 |
| 8. | One of the most significant properties of the electromagnetic wave is that it transports energy .
电磁波的最主要的性质之一是它能传输能量。 |
| 9. | The signals carried in copper wires consist of about one million waves per second .
在铜线中传送的信号是由大约每秒100万次波的电磁波所组成。 |
| 10. | If the resistance is small, most of the energy is radiated in the form of electromagnetic waves .
如果这电阻很小，则大部分能量以电磁波形式辐射出去。 |
