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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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英国学生科学读本

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

像方铅这样, 含着有金属物或者石头, 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,拔地区,像铋和方铅这样物会被高温蒸发。

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Awesome Nature

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

以铅、硫原子组成 立方结构硫化铅为例。

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