規模更小點，就用坩堝還原鐵礦石。我們學校裏就是把礦石，矽石，焦炭放在坩堝裏加熱生產鐵。

來源: chufang 於 2022-05-27 19:26:01 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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