稀土全球一年销售额也就50亿美元，是个没有任何经济价值的产业，技术难度却无比高，可以说是个无底洞

来源: z10 于 2025-10-20 18:50:51 [旧帖] [给我悄悄话] 本文已被阅读：次

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