短語詞組短語magnetic head core 磁頭鐵心;磁頭棠magnetic bobbin core 線圈鐵芯magnetic ferrite core 磁芯材料Magnetic amplifier core 磁放大器鐵芯Magnetic Pole Core 磁極鐵芯magnetic c core store 磁心存儲器magnetic -core switch 磁心開關magnetic powder core [材]磁粉心 返回 magnetic core