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单词 铅矿
例句 DEFINITIVE EXAMPLES 权威例句〔DIG〕Lead has been mined in this area for hundreds of years. 这一地区开采铅矿已有几百年的历史了。朗文写作活用〔backfill〕Some of the fluorite produced from the lead mines was used as backfill underground.铅矿产生的一部分萤石曾被用来作为地下回填材料。剑桥高阶〔galena〕A gray mineral, essentially PbS, the principal ore of lead.方铅矿:一种作为铅的主要矿石的灰色矿物,主要成分为PbS美国传统〔hill〕There are several lead mines in the hills above the town.俯瞰小镇的山岭里有好几座铅矿牛津搭配〔vanadinite〕A red, yellow, or brown mineral, essentially an ore of vanadium and lead.钒铅矿:一种红色、黄色或褐色矿物,尤指一种铅和钒矿美国传统
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