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Palaeoerosion sedimentary discontinuity type gold deposit is major type gold deposit of western Guangxi.
古侵蚀沉积间断面型金矿是桂西的主要金矿床类型。
youdao
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Palaeoerosion sedimentary discontinuity type gold deposit is major type gold deposit of western Guangxi.
古侵蚀沉积间断面型金矿是桂西的主要金矿床类型。
youdao