过去的几个月，大型矿业公司财富缩水幅度之大令人震惊，各矿业公司深受其苦。
BIG mining companies have suffered an astounding reversal of fortunes in the past few months.
如果你有机会去到矿井，那么你将会发现，各矿井都十分重视这个重要决定，并且很好的履行。
If you have a chance to the coal well, and you can see that the coal Wells are attach great importance to the important decision, and them are have a good performance.
为了实现煤矿安全生产，各矿必须建立稳定的矿井通风系统。
In order to realize safety production in coal mine, ventilation system must be set up.
由于各矿带矿物组合及含量的变化，使金的赋存状态及分布也发生相应改变。
The change of the mineral assemblage and content of every ore zone makes the change of the existing state and distribution of Au.
目前国内各矿井的排水系统多采用传统的继电器控制方法，用人工进行监测。
At present, most drainage systems of all domestic coal mine well adopt conventional means of relay controlling, inspected artificially.
本文详细介绍了一种准确测算高分散度粉体中各矿物含量的新方法。
This paper presents a new and precise method of determining and calculating mineral content of undue pulverious materials in detail.
根据煤灰化学成分分析结果，参照矿物标准成分推算各矿物相在煤灰中的含量。
Based on the results of chemical analysis of the coal ash, with reference to the standard composition of minerals the content of various mineral phases in the coal ash has been determined.
构造类型影响矿石类型和成矿系列中各矿床类型间的相互关系。
The granite petrotectonic not only controlled the mode of ore deposition, but also influenced the space relations among the ore types in W-Sn metallogenic series.
预测结果对于提高各矿井防突措施的有效性和针对性具有一定的参考价值。
The predicted results would provide certain reference values to increase the efficiency and aiming of the outburst prevention measures of each mine.
如何能比较准确地预测滑坡的发生，已成为各矿山开采过程中的难题之一。
How to accurately forecast the landslide has become one of the challenges of mining process.
第二阶段是矿田形成的主要阶段，造就了矿田内各矿床的主体。
The second period is main time of mineral field formation and the main part of deposits formed.
为选择适合焦家金矿各矿区的采矿方法，对岩体稳定性进行分级。
To select the appropriate mining methods for the areas of Jiaojia Gold Mine, the stability of rock mass was classified.
并应用反演结果对该采场各矿房围岩的变形进行了模拟计算；
The mechanical parameters were then used to compute, by numerical method, the displacements of the rock mass surrounding every stope in the block.
通过研究，对该矿各矿体的空间几何形态、内在地质特征与性质等有了更加直观、形象的了解，同时掌握了三维矿体模型建立的思路与详细步骤。
With help of this model, the spatial geometric form and inherent nature of different ore bodies of Miaogou deposit can be known directly and visually.
目前煤矿岩巷开拓任务重，岩巷机械化掘进成为各矿普遍存在的技术难题。
Developing rock roadway of coal mine is a hard task at present. Mechanized drivage of rock roadway has become a common technical problem of every coal mine.
目前煤矿岩巷开拓任务重，岩巷机械化掘进成为各矿普遍存在的技术难题。
Developing rock roadway of coal mine is a hard task at present. Mechanized drivage of rock roadway has become a common technical problem of every coal mine.
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