... •Rock support 岩石支护 •Surface mine design 露天矿设计 •Structural damage to mobile equipment and material transportation 移动设备和材料运输结构损伤 ...
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surface mine con struction design 露天矿施工设计
Surface e mine design 露天矿设计
surface mine development design 露天矿开拓设计
surface mine construction design 露天矿施工设计
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