narrow vein是什么意思

网络释义

用法例句

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

Experimental study on method of mechanized horizontal slicing and resuing-filling for the mining of gentle-dip narrow vein;

缓倾斜薄矿脉机械化水平分层削壁充填采矿法的试验研究

The application of shrinkage method in the stoping of extra narrow vein of rock gold mine;

留矿采矿法在岩金矿山极薄矿脉中的应用

By carrying on rock drilling and ore digging respectively, conducting rock and ore blasting separately and engaging rock and ore removal indePently from each other in the mining of extra narrow vein of Er-Dao-Gou Gold Mine, the grade of Produced ore was improved and so did the economic benefit.

二道沟金矿在极薄矿脉探矿时,采用矿岩分凿、分爆、分出办法,提高了副产矿石品位,为企业多创经济效益。

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。

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

On Application of Sublevel Drilling and Stope Mining Method in Mining Thin Lode of Shouyun Iron Mine

分段凿岩阶段矿房法在首云铁矿薄矿脉开采中的应用研究

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

In raining industry developed countries mining mechanization in narrow vein mines was introduced widespreadly.

在采矿业较发达的国家,薄窄矿脉矿山采掘机械化普遍推行。

Kinetic Monte Carlo Simulation of Deposition of Perovskite Ferroelectric Thin Film by Pulsed Laser Deposition;

脉冲激光沉积钙钛矿铁电薄膜的动力学蒙特卡罗模拟

A rich mine, vein, or pocket of ore.

富矿脉富矿坑、脉、囊

A vertical, cylindrical vein of ore.

管状脉直立的管状矿脉

A branch from a dike or vein.

岩脉分支，矿脉分支

diaphragm and piston-type pulsator

薄膜和活塞式脉动器

the rarefied air of the Andes

安第斯山脉的稀薄空气.

A regularly shaped and lengthy occurrence of an ore;a lode.

矿脉某种矿石的形状规则而且漫长的出现；矿脉

To discover and open(a vein or deposit) in mining.

采采矿时发现和开采出（矿脉或矿床）

The ore minerals are bounded by the vein walls.

矿石矿物局限于矿脉之内。

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

Investigation On Switching To Other Production Of The Thin Coal Seam Mines Of Yankuang Group;

兖矿集团薄煤层矿井转产途径的探讨

Causes include hereditary valve and vein wall weakness and internal or external pressure on veins.

静脉壁及静脉瓣的薄弱可能为遗传性。

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