electromagnetic wave

名词 electromagnetic wave:

1. radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge
   同义词：electromagnetic radiation, nonparticulate radiation

1. Electromagnetic wave travel as light wave do.
   电磁波的传播就像光波的传播一样。
2. A device used to modulate an electromagnetic wave.
   调制器用以调制电磁波的装置
3. An electromagnetic wave of audio frequency produced by atmospheric disturbances such as lightning, having a characteristically decreasing frequency responsible for a whistling sound of descending pitch in detection equipment.
   啸声干扰一种由于诸如闪电等大气干扰而产生的音频电磁波，具有典型的逐渐减弱频率的特征，该频减引起了检波设备中调逐渐下降的啸声