规模更小点，就用坩埚还原铁矿石。我们学校里就是把矿石，硅石，焦炭放在坩埚里加热生产铁。

来源: chufang 于 2022-05-27 19:26:01 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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