Total copper content in HDE is one important index of quality.

总铜量是HDE的一个重要的质量指标。

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And chalcopyrite in copper minerals accounted for about 74% of total copper.

黄铜矿难以很好地解离是难选的另一原因。

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Dissolved organic complexing copper accounts for 61.6% of total copper in filtered seawater.

溶解态铜中有机结合态占过滤海水中总铜的61.6%。

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The iPath DJ-UBS Copper Total Return Sub-Index ETN ( JJC) is the most liquid of the exchange traded products that follow copper prices.

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Researchers conclude that a potential future global population of 10 billion people could consume 1.7 trillion kilograms of copper total, greater than the estimated global in-ground stocks of 1.6 trillion kilograms.

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Freeport is first and foremost a copper company: copper contributes 73% to the total reserves, while gold only contribute 5%.

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