flat grade mine

用法例句

AN APPLICATION OF ROCK MECHANICS IN MODERATE DIP OREBODY MINING

岩石力学在缓倾斜矿体开采中的应用

Selection of Mining Methods of Little Declining Ore-body Under Thick-large Quaternary

厚大第四系下缓倾斜矿体采矿方法的选择

Machinery Solution to Cut Ore Loss in Exploitation of Gently Inclined Ore Body

缓倾斜矿体开采中降低矿石损失的机械解决方法

Improvement of mining method for the orebody of gentle dip and medium thickness

缓倾斜中厚矿体采矿方法的改进实践

new developments of underoround mining methods For gentle dip and thin orebodies in foreign countries

国外缓倾斜薄矿体采矿方法的新发展

Test research of mining method of gently inclined moderate thick ore-body

缓倾斜中厚金矿体采矿方法试验研究

A TEST OF THEM MINING METHOD FOR MODERATELY INCLINED THIN OREBODY IN DOUNAN MANGANESE MINE

斗南锰矿缓倾斜薄矿体采矿方法的试验研究

Research on Mining Method of Thin and Multilayer Ore Bodies That Sloped Slowly of Yunnan Dayao Copper Mine;

云南大姚铜矿多层缓倾斜薄矿体采矿方法研究

Theory and technology on trackless mining of gentle dip multi-strata ores of medium size

缓倾斜中厚矿体机械化采矿理论与技术

A talk about the orientation of the development of mining gentle dip and extra-narrow orebody by resuing-and-backfilling method

浅论缓倾斜极薄矿体削壁充填采矿法发展方向

Study on mining method for the mining of gentle dip orebody of fracture zone type

对缓倾斜破碎带型矿体开采方法的探讨

The Application of the Delaminating All-sided Stoping in Exploitation of Gentle Dip Rich Ore-body

分层全面法在开采缓倾斜富矿体中的应用

Elementary analysis of the current situation and advance in stoping of gentle dip and medium thickness orebody

浅析国内缓倾斜中厚矿体回采现状及进展

Stability analysis of mined-out area in gently inclined broken discontinuous orebody

缓倾斜破碎不连续矿体采空区稳定性分析

Application of Groove Cutting by Medium-length Hole Blasting in Gently Inclined Cracked Orebody

中深孔排炮拉槽在缓倾斜破碎矿体中的应用

Low Dip Ore-forming Theory of Cryptoexplosive Breccia Deposit and Its Application

隐爆角砾岩型矿床矿体缓倾斜成矿理论及其应用

A new method for the mining of gentle dip and mediun thickness orebody

缓倾斜中厚矿体的一种新的采矿方法——深孔放顶连续回采房柱法

Mining 0ptimizing Study of the Gentle-Dipping and Medium-Thickness Oxide Ore Body of SongShuJiao's Tin Mine of Tin Corporation of YunNan;

云锡松矿缓倾斜中厚氧化矿体采场开采优化研究