Chengmenshan copper mine is one of the largest polymetallic deposits in China, which contains copper, sulfur, zinc, molybdenum, and iron.

城门山矿床是国内非常重要的大型铜多金属矿床，蕴藏资源以铜为主，兼有硫、锌、钼、铁等。

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As an important geophysical tool, the transient electromagnetic method (TEM) has been widely used for exploration of Cu-polymetallic sulfide deposits.

瞬变电磁法在矿产资源等勘查领域已广泛应用，成为寻找铜多金属硫化物矿床的重要方法。

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The Dulong tin deposit is the largest Sn, W polymetallic deposit in Laojunshan, southeastern Yunnan and is also one of the three large tin bases in China.

都龙锡矿床是中国三大锡矿基地之一——滇东南老君山锡、钨多金属成矿区中最大的矿床。

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Only weeks earlier, a Lockheed unit in the United Kingdom was granted an exploration license by the International Seabed Authority to mine polymetallic nodules on the ocean floor between Hawaii and Mexico.

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