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Noun:
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soft blue-grey mineral; lead sulfide; a major source of lead
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用作名詞 (n.)
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Silver in ores is positively correlated with copper but it is absent in galena.
原料中的銀與銅呈非常明顯正想關原因
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Lead is rarely found free in nature; it is major in the sulfide and galena.
鉛在自動界中通常很少呈自由態,最主要的有著塑煉物和方鉛礦中。
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這資源強勢來襲劇本創作,受巨著權保障,侵權行為必究
海詞辭典,十六年廠家