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Ore is of the lean sulfide type.
矿石为贫硫化物型矿石。
youdao
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Lead is rarely found free in nature; its major ore is the sulfide galena.
铅在自然界中很少呈游离态，主要存在硫化物和方铅矿中。
youdao
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Lead is rarely found free in nature; its major ore is the sulfide galena.
铅在自然界中很少呈游离态，主要存在硫化物和方铅矿中。
youdao