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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.

和硒主要赋存矿、硒矿和硒矿中，这3种矿胞腔充填形式出现，属于化学沉积成因。

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原声例句
英国学生科学读

Minerals or stones, like galena, which contain useful metals, are known as ores.

这样, 含着有用的金属的物或者石头, 我们叫它“石”, 英语是ore。

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Crash Course 天文篇

As the thinking goes, at lower elevations, minerals like bismuthinite and galena would be vaporized by the heat.

按照这种想法，在低海拔地区，铋这样的物会被高温蒸发。

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Awesome Nature

Take galena, which has a cubic structure composed of lead and sulfur atoms.

以、硫原子组成 立结构的硫化为例。

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