根据地壳中锰的分布尽管是一种相当普通的金属,但陆地上有经济价值和高品位(含锰在35%以上)的锰矿资源的地理分布是很不平衡的,如已探明的锰矿资源约有80%位于南非和苏联,而且目前世界产量的95%仅出自七个国家。在工业发达的经济大国西欧或日本都没有大的生产,而美国目前的产量为零。美国确 According to the distribution of manganese in the earth’s crust, despite its fairly common metal, the geographical distribution of economically valuable and high-grade manganese ore (over 35% manganese) on land is unevenly balanced, as proven manganese ore About 80% of the resources are located in South Africa and the Soviet Union, and 95% of world production now comes from only seven countries. There is no major production in the developed economies of Western Europe or Japan, while the United States currently produces zero output. America indeed