名詞 electromagnetic wave:

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

1. Electromagnetic wave travel as light wave do.
   電磁波的傳播就像光波的傳播一樣。
2. A device used to modulate an electromagnetic wave.
   調制器用以調制電磁波的裝置
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.
   嘯聲干擾一種由于諸如閃電等大氣干擾而產生的音頻電磁波，具有典型的逐漸減弱頻率的特征，該頻減引起了檢波設備中調逐漸下降的嘯聲