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有色金属是国民经济的基础,有色金属每年都有不同程度的增长。据美国矿业局分析,全世界从1978～2000年间有色金属的平均递增率大体可分为几种不同类型:其中年增长率为5—10％的有铝、稀土等;年增长率为3.1～4.9％的有铜、铅、钼、镍、钨等;年增长率为0.1～3％的有锑、锡、锌等。我国有色金属资源丰富,近年生产发展很快,目前我国有色金属总产量,仅次于美
Non-ferrous metals are the foundation of the national economy. Non-ferrous metals have varying degrees of growth each year. According to the analysis of the United States Bureau of Mines, the average increment rate of nonferrous metals in the world from 1978 to 2000 can be broadly divided into several different types: aluminum, rare earth, etc., of which the annual growth rate is 5-10%; the annual growth rate is 3.1 ~ 4.9% of copper, lead, molybdenum, nickel, tungsten and so on; the annual growth rate of 0.1 to 3% of antimony, tin, zinc and so on. China is rich in non-ferrous metals resources. In recent years, its production has been developing rapidly. At present, China’s non-ferrous metal output, second only to the United States