短語詞組短語electromagnetic effect energy beaming 電磁聚束electromagnetic effect energy loss 電磁能損耗electromagnetic field energy 電磁場能量electromagnetic radiation energy 電磁輻射能量electromagnetic stored energy welding 電磁儲能銲electromagnetic effect energy 電磁幅射能electromagnetic radiant energy 電磁輻射能electromagnetic vibration energy harvester 電磁式振動能量採集器pulse electromagnetic kinetic energy generator 脈沖電磁動能發(fā)電機 返回 electromagnetic energy