The performance of orepasses has direct influence on the operational efficiency of a mine as a whole and its economic results.
放矿溜井放矿能力的好坏,直接影响着整个矿山的生产效率及经济效益。
Design and application of stope ore chute in Longshou mine;
龙首矿采场溜矿井设计与应用
Copyright © 2022-2024 汉字大全www.hanzidaquan.com All Rights Reserved 浙ICP备20019715号