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叙述了 2 0 0 1年与 194 6年对比 5 5年来露天采矿设备发展演变的情况。重点介绍了露采设备规格尺寸的增长变化及新出现的露采设备。还预言了未来露采设备的发展趋势
Describes the development and evolution of surface mining equipment in 2001 compared with 1964 in 2005 and 2005. It mainly introduces the growth and change of the specifications and dimensions of the dewatering equipment and the new emergent mining equipment. Also predicted the future development of mining equipment trends