名詞 electromagnetics:

1. the branch of physics concerned with electromagnetic phenomena
   同義詞：electromagnetism

1. 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
2. The centimeter-gram-second electromagnetic unit of current equal to ten amperes.
   電磁安培厘米一克一秒電磁單位，相當于10安培