针对采矿技术条件复杂的薄矿脉开采，推荐采用有钢筋混凝土护顶的下向分层充填采矿法。
The underhand slice stoping method, with reinforced concrete for roof support, is recommended to mine narrow veins where the mining technological conditions are very complicated.
矿藏丰富的国家那些已被放弃的矿脉又重新开工——尽管开采成本比较高，英国的微型淘金热也可能正在进行中。
Abandoned veins in mineral-rich countries have become viable again-and despite the relatively steep extraction costs, a miniature gold rush might be under way in Britain, too.
IP测量的目的在于寻找正在开采的矿脉的延伸。
IP surveys aimed at finding the extent of a vein being mined.
他们发现了一个金光闪闪的矿脉，于是买下了这个矿藏的开采权，一定要把矿藏中的金子挖出来卖钱。
They discovered a vein of the shining ore, staked a claim, and proceeded to get down to the serious business of getting the gold ore out of the mine.
葡萄牙帕纳什·凯拉黑钨矿为微倾斜极薄矿脉，开采难度大。
Portugal Panasqueira wolframite deposit consists of very thin, gently dipping veins which are very hard to mine efficiently.
其研究结果对缓倾斜极薄矿脉的开采具有重要意义。
The research is of great reference significance to the mining of the gently inclined and thin ore vein.
这对我国缓倾斜薄矿脉的矿山深井开采支护设备的引进和改造，将有一定的参考借鉴作用。
It can be used for reference for the import and remoulding of supporting equipments of deep well mining of narrow and gentle dip vein.
浅孔留矿法对急倾斜薄矿脉的矿体开采是一种有效的采矿方法，具有高效低耗与工艺简单等优点。
Short-hole shrinkage mining is an effective method for mining steep-thin veins, and it has advantages of high-efficiency and low-waste and simple technology.
这样优选采矿方法对于开采极薄矿脉的黄金矿山、有色及稀有金属矿山具有现实意义。
It has realistic meaning for the mines of gold and non-ferrous metals which mine extra narrow veins.
陕西商州市金矿采用削壁充填采矿法开采急倾斜薄矿脉，获得成功，取得良好的经济效益。
Resuing is used for mining the steeply dipping narrow-vein in the Shangzhou Gold Mine of Shaanxi, has made great success and excellent economic effect.
对于缓倾斜极薄矿脉的开采，通常采用全面法、削壁充填法、选别回采、长壁法等采矿方法。
For the gently inclined and extremely-thin vein, the mining methods including breasting method, waste-lifting stoping, resue stoping, long walling were usually adopted.
缓倾斜极薄矿脉的开采存在的共同难题是矿山生产能力低，回采难度大。
The common problems existing in the exploitation of flat-dipping thin ore-bodies are that the production capacity is lower and the recovery is difficult.
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。
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.
新的无爆破采矿工艺的诞生为开采黄金、钨、钼等贵金属薄矿脉和极薄矿脉开辟了一条途径。
The new mining method can reduce losses and dilution of excavated ores to extreme extent (<1~3%), while saving explosive materials.
新的无爆破采矿工艺的诞生为开采黄金、钨、钼等贵金属薄矿脉和极薄矿脉开辟了一条途径。
The new mining method can reduce losses and dilution of excavated ores to extreme extent (<1~3%), while saving explosive materials.
应用推荐