1.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.
1.铅主要赋存在铅矿、铅矿铅矿中,这3种矿物以植物胞腔充出现,属于化学沉积成因。
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1.Minerals or stones, like galena, which contain useful metals, are known as ores.
像方铅这样, 有用的金属的物或者石头, 我们叫它“石”, 英语是ore。
2.As the thinking goes, at lower elevations, minerals like bismuthinite and galena would be vaporized by the heat.
按照这种想法,在低区,像铋和方铅这样的物会被高温蒸发。
3.Take galena, which has a cubic structure composed of lead and sulfur atoms.
以铅、硫原子组成 立方结构的硫化铅为例。
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