... fired stones热措置惩罚宝石同heated stone fired zin热措置惩罚锆石 alluvial diamond金刚石砂矿 dumortierite quartz含蓝线石透明水晶 ...
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Alluvial Diamond Deposit 冲积钻石矿
·2,447,543篇论文数据，部分数据来源于NoteExpress
De Beers is active in every category of industrial diamond mining: open-pit, underground, large-scale alluvial, coastal and deep sea.
FORBES: Anglo American Receives Final Regulatory Approval for De Beers Acquisition
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