“secondary mineral resources”的概念、定义、翻译、参考文献-科学参考

单词	secondary mineral resources
释义	secondary mineral resources Encyclopedia 工学二次资源开采释 secondary mineral resources二次矿产资源在矿床开采和选矿过程中产生的，仍堆存或遗留在矿区范围内的矿柱、残留贫矿、尾矿和崩落区废石等可以回收和利用的资源。
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