電磁鐵定義
內部帶有鐵芯的、利用通有電流的線圈使其像磁鐵一樣具有磁性的裝置叫作電磁鐵(electromagnet)。tongchangzhichengtiaoxinghuotixing。tiexinyaoyongrongyicihua,yourongyixiaoshicixingderuantiehuoguiganglaizhizuo。zheyangdediancitiezaitongdianshiyoucixing,duandianhoujiusuizhixiaoshi。diancitiezairichangshenghuozhongyoujiqiguangfandeyingyong。diancitiedefamingyeshifadianjidegonglvdedaolehendadetigao。
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