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据联合国世界金融统计资料等统计出的铁、铝、铜、锌全世界年消费量(以矿山开采为主),按照以发表的各矿种全世界储量及其消费的处增长率算出以上四个矿种的寿命如下表:
The annual consumption of iron, aluminum, copper and zinc in the world (mainly mining) calculated from the UN World Financial Statistics and other statistics is calculated by the growth rate of the world’s reserves and their consumption of the various mines released The life of a mineral is as follows: