... 矿业;采矿：mining 矿心：ore core 矿物组成分：mineral constituents ...
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... 岩芯 core 矿芯 ore core 岩芯采取率 core recovery ...
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·2,447,543篇论文数据，部分数据来源于NoteExpress
The mining group has said that it wants to focus on core businesses such as iron ore and coal.
BBC: BHP Billiton sells Arizona copper mine to Capstone
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