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DB process
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DB process
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铜冶金
释
Outotec direct to blister copper process; DB process
奥图泰直接炼铜法
以辉铜矿、斑铜矿等特殊类型低铁铜精矿为原料,采用奥图泰型闪速炉熔炼,一步生产粗铜的技术。
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Lingyan Mountains by Yun Shouping
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Lingyan temple
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Ling Yi ritual vessel
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Lingyun Baihao tea
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Lingyun Xian
Ling Zifeng
Linhai Museum
Linhai Panhao tea
Lin Haiyin
Lin Haoran
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