underlay lode

用法例句

Through an exploratory survey of residual deposit in the sourthern zone of a copper ore mine,inclined thin veins with difficult occurrence and complicated mining conditions were discovered.

某铜矿在矿区南部探边扫盲时 ,探获了与原主矿体赋存状态截然不同的倾斜薄矿脉 ;其产状变化大 ,开采条件较复杂。

Optimization and experiment of the mining methods for extra narrow gold vein of inclination (then turned to steep inclination);

倾斜转急倾斜极薄矿脉在岩金矿山和有色金属矿山具有一定的普遍性 ,选择合理的采矿方法和回采工艺 ,是保证其开采经济效益和充分回收有限资源的根本前提。

Short-hole shrinkage method is commonly employed in mining steeply-inclined narrow vein.

对于急倾斜极薄矿脉的开采国内外最常用的采矿方法是浅孔留矿法,实践表明,该法存在人工劳动强度大、矿石贫化率高等缺点。

Optimization of mining method for steep dip and narrow vein in Bei-Gan-Gou Gold Mine

北干沟金矿急倾斜薄矿脉采矿方法优化选择

Numerical Analysis of Failure Zone of Steeply Pitching Thin Vein Stope in Jinqingding Mine

金青顶矿急倾斜薄矿脉回采过程采场破坏区域数值分析

Study on the Optimization of the Stope Structure Parameters and Extraction Sequence of Gently Inclined and Very Thin Ore Vein

缓倾斜极薄矿脉采场结构参数和回采顺序优化研究

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

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

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

The angle of inclination from the vertical of a vein, fault, or lode.

倾斜余角因矿脉，断层或矿井倾斜而与垂直面形成的角度

Mining Steeply-inclined Thin Orebody with Medium-deep Hole High Sublevel Stoping Method

中深孔高分段空场法开采急倾斜薄矿体

Practice on Combination Method of Exploration and Mining and Comprehensive Mining Method of Small Blocks in Irregular Vein Type Tilted Orebody

沙旺矿区不规则脉状倾斜矿体探采结合与小矿块全面法回采实践

Discussion on Decreasing the Dilution and Loss Rate of Underground Mining Alumyte of Gently Dipping Thin Ore Body

降低缓倾斜薄矿体铝土矿地下开采损失贫化率方法探讨

Improvement on Mining Method of Extracting Triangle-stope near Outcrop of Steeply-iclined Thin Orebody in Yangguangzhai

杨广寨急倾斜薄矿体近地表三角采场开采方法改进

Successful experience is stated on reduction of ore-dilution in some uranium mine where a moderate dip and thin-bed deposit of sedimetary sandstone type has been mining.

某矿在开采缓倾斜薄层铀矿床中,加强了科学管理,有效地控制了采幅;

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

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

Effect of dip angle on stability of inclined stope in Canzhuang Gold Mine

蚕庄金矿倾斜矿房倾角对其稳定性的影响

Application of air holders in gentle dip and thin seam

气垛支架在缓倾斜薄煤层中应用分析

Longwall mining along the dip of the unstable coal seam and strata control

不稳定煤层倾斜长壁开采及矿压控制