义词
物;Lead and selenium mainly exist in galena, clausthalite, and selenio-galena which occur as cell-filling of coal-forming plants and are of chemical-sedimentary origin.
和
主要赋存在方矿、矿和方矿中，这3种矿物
植物胞腔充填形式出现，属于
学沉积成因。
矿；硫Lead and selenium mainly exist in galena, clausthalite, and selenio-galena which occur as cell-filling of coal-forming plants and are of chemical-sedimentary origin.
和主要赋存在方矿、矿和方矿中，这3种矿物植物胞腔充填形式出现，属于学沉积成因。
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