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在世界许多国家,利用地下空间建设国民经济所需的工程项目,无论按面积计还是按工程量计每年都在增长。在地下,可以建石油、煤气和各种材料的储藏库、工业企业废料库、水力发电站、大型工业企业及在工艺上连接起来的工业环节、选矿和尾矿堆存联合项目。目前在地下采矿巷道中建有选矿厂的有:有完整选矿回路的如加拿大(叁罗矿、日奥凯尔·弗莱茨矿、米德罗济安矿)美国(伊格尔矿)、秘鲁(马德里加尔矿)、智利(《里奥
In many countries of the world, the construction projects needed to build a national economy using underground space are growing year by year or by project. Underground, you can build oil, gas and storage of various materials, industrial waste banks, hydroelectric power stations, large industrial enterprises and in the process of connecting the industrial sector, beneficiation and tailings piling joint project. At present, there are mineral processing plants in the underground mining tunnels such as Canada (Sanluo Mine, Day Oakleigh Fletz Mine, Midodroan Mine) USA (Iger Mine), Peru ( Madrid Gal mine), Chile ("Rio