短語詞組短語electromagnetic angular momentum 電磁角動量electromagnetic field momentum density 稱為電磁場動量密度electromagnetic effect momentum 電磁動量electromagnetic moment of momentum 電磁角動量electromagnetic energy -momentum tensor 電磁能量動量張量momentum electromagnetic 電磁動量momentum of electromagnetic field 電磁場的動量momentum of electromagnetic radiation 電磁軸射動量 返回 electromagnetic momentum