中國搞稀土最早是因為裝甲鋼和炮鋼缺鎳，稀土是替代品。60年代就開始重點搞了。

來源: Lisland_2013 於 2025-10-23 07:54:14 [舊帖] [給我悄悄話] 本文已被閱讀：次

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