The bid says much about Rio's ambitions and the battle that giant mining firms will face in getting their hands on the world's mineral resources.
这种开价的行为表明了力拓的野心以及矿产业巨头们将面临的世界矿产资源的争夺战。
In the face of customer data increasing explosively, data mining is the key to advance the decision-making efficiency in telecom CRM.
面对电信行业客户数据爆炸式增长，将数据挖掘技术引入电信客户关系管理中是电信企业提高决策效率的关键。
This paper, focusing on the theme of resource recovery, introduces the technical practices in optimizing the face arrangement, improving mining technology and production processes of the Group.
本文围绕提高资源回收率这一主题，介绍了该集团在优化工作面布置、改进开采技术和生产工艺方面的技术实践。
Some graphs of surface movement and distortion can be shown also when working face is advanced with different mining speed in certain time.
能够作出在一定时间内不同开采速度条件下的地表移动变形曲线。
The mining procedures which have an influence on the stress field in the strata and the fracturing of the roof are the rate of daily face advance, the mining rhythm, and the nature of working.
对于覆岩应力场和覆岩破裂有影响的采矿因素是工作面推进速度、采矿周期性和顶板管理方法。
In large dip Angle mining face, the antis-kid and anti-collapse question on hydraulic support is a key to mining successfully.
在大倾角工作面中，液压支架的防倒防滑问题是工作面能否顺利实现开采的关键。
Stability control of the head faces top-coal is one of the key techniques of realizing high production and high efficiency to coal mining in fully mechanized top-coal caving face.
大倾角松软煤层综放面实现高产高效的关键之一是端面顶煤稳定性控制。
During mechanical longwall top coal mining, the gas permeability in top coal ahead of working face has bigger difference compared with slice mining due to the increase of mining height.
综放开采由于采高的加大，导致采场前方顶煤中瓦斯渗透性与分层开采有较大的差异。
In the production process of Huopu Mine, advance mining method was temporarily adopted in local area due to the impact of underground water and geologic structure in front of the working face.
火铺矿采煤工作面生产过程中，由于工作面前方受水及地质构造等因素的影响而局部地段临时采用前进式推进的方法进行回采。
Along with mining depth becoming deep and coal output increasing, the gas discharge increased, and gas problem of primary mining in coal face becomes important.
随着采煤深度的下延和产量的加大，瓦斯涌出量逐步增加，采煤工作面初采期间的瓦斯问题越来越引起重视。
The cantilever support mining was successfully applied at No. 303 face in Xixizhuang Coal Mine.
西细庄矿在303工作面首次使用悬移支架开采获得成功。
Under the condition of pulsed ventilation, the physical process of gas transport in the upper corner of mining face is analyzed, and the dynamic model of gas transport is set up.
在脉冲通风条件下，分析了回采工作面上隅角积聚区内瓦斯运移的物理过程，建立了上隅角积聚区瓦斯运移的动力学模型。
The technology of crossing over fault, drifting and actual mining method and plan of crossing over fault at combined mining face under complex geology conditions in Jining no.
介绍了济宁二号矿复杂地质条件下综放工作面过断层技术，掘进和回采对断层的处理方法及回采工作面制定过断层方案的步骤。
The drag-link conveyer, which is important equipment in the coal production, plays an important role for the safety of the whole mining face.
刮板输送机是煤矿生产的重要运输设备，对于整个工作面的安全起着至关重要的作用。
In early application of fully mechanized top coal mining, Spontaneous fire took place when the backout of fully mechanized top coal caving face was stopped mining.
在应用综放开采的初期，每当综放工作面停采回撤时，就会发生自燃发火。
However in the productive practice of mining, the gas gush quantity in dig working face is different with the gas fountain, it often shows abnormity.
而在许多矿井的生产实践中，掘进工作面瓦斯涌出量却显示出与直接源涌出量不一致的特性，常常出现瓦斯涌出异常现象。
The water-inrush from floor inundates Working face 51101W in Liangzhuang coal mine, Xinwen Mining Group.
新汶矿业集团良庄煤矿51101W工作面因底板突水导致工作面被淹。
The paper talks about the research on the causes and process of traverse of whole equipment in fully mechanized mining face, and shows some directions for the production management.
对综采工作面设备整体横向端头窜动的原因及过程进行了定量研究，并取得设备窜移的技术参数，对生产管理具有一定的指导意义。
The paper described in detail the high undercover large mining coal face roof control the basic requirements of the roof control and the strengthening of specific measures.
该文详细叙述了大采高卧底煤工作面顶板控制的基本要求和加强顶板控制的具体措施。
Analyzing the accident of the type and reason in blast mining top-coal face, and preventative measures are provided.
分析了炮采工作面顶板事故的类型及产生原因，提出了预防措施。
Through the research of high gas and multi-water-bursting hazards prevention techniques in Jiaozuo coal mine regions, the mining coal method of caving working face is found.
通过对焦作矿区高瓦斯多水害防治技术研究，找出适合该条件下的炮采放顶煤模式的采煤方法。
During the drivage of main-gate in long-wall face with fully mechanized caving mining, the gate is hard to support due to its loose and broken roof, large cross-section and long span.
在综采放顶煤工作面顺槽掘进过程中，由于顺槽煤层顶板松动破碎，并且顺槽采用矩形断面，顶板跨距较大，不利于巷道支护。
On-way distribution of dust in the full face mining was researched during the process of coal mining machine cutting coal.
研究采煤机在割煤落煤过程中，粉尘在综采工作面的沿程分布情况。
This paper introduces the methods and measures of the adjustment of support tilt caused by ultrahigh mining in fully mechanized coal face.
本文介绍了综采工作面回采超高时倾斜歪倒支架调整的方法及措施。
In the research field of mining coal, it is a new research direction that three-dimensional graph technology is applied to simulate the production process of fully mechanized coal caving face.
运用三维图形技术模拟综采工作面生产过程是煤炭开采研究领域的一个新方向。
Virtual scene modeling is one of the key technologies in virtual reality, the scene of fully mechanized mining face is complex, and the models are numerous, so the modeling work is huge.
虚拟场景建模是虚拟现实技术中的关键技术之一，虚拟综采工作面场景复杂，模型众多，建模工程巨大。
Author introduces the structure and the working principle of the secondary dust removal device with negative pressure as well as the application to fully mechanized mining face in Shuoli colliery.
介绍了综采割煤二次负压降尘装置结构、工作原理以及在朔里煤矿综采工作面使用情况。
Author introduces the structure and the working principle of the secondary dust removal device with negative pressure as well as the application to fully mechanized mining face in Shuoli colliery.
介绍了综采割煤二次负压降尘装置结构、工作原理以及在朔里煤矿综采工作面使用情况。
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