中国搞稀土最早是因为装甲钢和炮钢缺镍，稀土是替代品。60年代就开始重点搞了。

来源: Lisland_2013 于 2025-10-23 07:54:14 [旧帖] [给我悄悄话] 本文已被阅读：次

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