pitching vein是什么意思

网络释义

用法例句

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 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。

Blast surrounding rock and fill stopping method is used for mining dip turn into steep and thinnest vein-type deposit in a level.

应用削壁充填法开采阶段内倾转急倾斜极薄矿脉 ,取得了较好的经济效益 ,对其他矿山有参考价

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

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

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

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

Study on Top Coal Caving Technology of Horizontal Section in Steep Seam in Weihuliang;

苇湖梁煤矿急倾斜综采放煤工艺研究

Analysis of Mining Steeply Inclined Coal Seam with Bursting Risk in Small Colliery

小煤矿急倾斜突出煤层开采方法探析

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

Application of bolt-beam-mesh combined support technology in steeply inclined thin coal seams

锚梁网联合支护技术在急倾斜薄煤层中的应用

Combin gateway and pillar with fully mechanized top cawing mining technology in steep inclined special thick seam

急倾斜较薄特厚煤层巷柱-综采放顶煤开采技术

Research on Repair Support of Fracture Zone in Steep Layer in Taiping Coalmine;

太平矿急倾斜破碎围岩巷道修复支护研究

Law of ground movement and its deformation mechanism induced by mining steep deposit

急倾斜矿体开采岩体移动规律与变形机理

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