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、和中，这3种以植胞腔充填形式出现，属于化学沉积成因。

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.

铅和主要赋存在方铅矿、铅矿和方铅矿中，这3种矿物以植物胞腔充填形式出现，属于积成因。

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、和中，这3种以植胞腔充填形式出现，属于化学沉积成因。

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、和中，这3种物以植物胞腔充填形式出现，属于化学沉积成因。

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、和中，这3种以植胞腔充填形式出现，属于化学沉积成因。

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.

铅和主要赋存在方铅、铅和方铅中，这3种物以植物胞腔充填形式出现，属于化学沉积成因。

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.

铅主要赋存在铅矿、铅矿铅矿中，这3种矿以植胞腔充填形式出现，属于化学沉积成因。

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.

铅主要赋存在铅矿、铅矿铅矿中，这3种矿以植胞腔充填形式出现，属于化学沉积成因。

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.

铅和主要赋存在方铅矿、铅矿和方铅矿中，这3种矿物以植物胞腔充填形式出现，属沉积成因。