查询词典 pillar of coal

This paper expounds the feasibility of using the underland voltage o f 10 kV in the coal mine, analyzes the problems existing in the current use of t he underland voltage of 10 kV in the coal mine, makes comparison of the power-s upply schemes of the underland voltage of 10 kV and 6 kV in a certain large-sca le coal mine, and puts forward corresponding suggestions for the levels of the u nderland voltage of the coal mines with different scales.

阐述了10kV电压下井的可行性，分析了目前井下采用10kV供电电压等级存在的问题，对某大型矿井10kV和6kV下井电压的供电方案进行了比较，对不同规模矿井的下井电源电压等级选择提出了相应的建议。

The geologic agent affecting the gas occurrence of the coal seam unmined in Xiaonan coal mine;2. We take the 14# coal seam of Xiaonan coal mine of Tiefa basin as an example and analyse the geologic agent systematically which influences the gas content.

未开采煤层瓦斯含量及影响因素研究，是煤矿安全生产的重要基础研究工作，以铁法盆地晓南矿未开采的14#煤层为例，系统分析了影响瓦斯含量的地质因素。

Besides, it has researched on the achievement of the case in Chengzhuang mine of Jincheng Coal Industry group. By combing the reality of coal enterprises, the research has put forward the key points in the establishing, running and contorting process. According to the standend element of ISO14001 environment management system, example designed a set of model and method for environment management system in coal enterprises, making a reference for the coal enterprises to carry out the theories and methods of ISO14001 environment management system.

研究中结合煤炭企业实际，提出必须立足本企业现有的能力和资源去评价和更新重要环境因数并对其实施控制等观点，并结合ISO14001标准要素条款，探索性地设计了一套晋煤集团成庄矿环境管理体系的绩效评估模式和方法，通过应用费用效益法和综合模糊评价法对评估指标体系进行了评估计算，得出了绩效评估结果，从而为煤炭企业推行和实施ISO14001环境体系在理论和方法上起到了一个借鉴和参考作用。

On the basis of solute transport theory, the coal gangue eluviated in Xinqiu in Fuxin coal miming area was studied for the pollution of groundwater. The mechanism of coal gangue eluviated in the aquifer was analyzed. A coupled numerical model was developed with convection、sorption and dissolve、disintegration for simulating the leachate transport in groundwater. The model was discreted by using a Gelarkin finite-element method and a Picard iteration scheme, and the process of coal gangue leachate was presented, which predict the temporal and spatial distribution features of contaminant concentration. The result indicates that the contaminated plume is continually extended as time increases, and the vertical diffusion is more abvious.

以溶质运移理论为基础，针对阜新市新邱露天煤矿煤矸石淋滤液对地下水污染实际情况，分析了煤矸石渗滤液在含水层中运移的规律，在综合考虑对流扩散、吸附解吸、生物降解条件下建立了淋滤液在地下水中运移的耦合动力学数学模型，采用Galerkin有限元方法和Picard迭代法相结合对耦合模型进行了离散，模拟了淋溶液对地下水污染的动态过程，预测了污染浓度的时空分布特征，并结合实际观测数据进行对比。

Below the magnetic induction intensity of 675mT, magnetize what time exceeds oar of coal of fine coal water to different pH indicator to flow become characteristic the impact is bigger, the time that magnetizes Gao Nong to spend lower than magnetization density to exceed oar of coal of fine coal water is short, more be helpful for shedding the improvement that becomes characteristic.

在675mT的磁感应强度下，磁化时间对不同浓度的超细煤水煤浆的流变特性影响较大，磁化高浓度比磁化低浓度超细煤水煤浆的时间短，更有利于流变特性的改善。

This text introduces the work principle of the method of controlled source audio-frequency magnetotellurics, analies the effect of this method in detecting buried fault in coal mine, And the means of field exploration in a coal mine in Shanxi solves the problems in design and production of coal mines and, proves that the advance forecast of such method in detecting buried fault in coal mine is reliable.

本文介绍了可控源音频大地电磁测深法的工作原理，并对隐伏断层的电性特征进行了正演计算。通过在山西某煤矿的实地探测分析可知，隐伏正断层的异常表现一般为横向电阻率等值线发生错断、并伴有同向扭曲现象，有比较明显的密集梯度带。

Factory covers an area of 3000 square meters, mainly the production of mining machine drum, gear, Block, cutter, bucket teeth, serve the Datong Coal Mine Group, Xishan coal, coal-ning the National Coal Group and other companies, products and services rotary drilling of Geology and Mineral Resources in Beijing Qinghai-Tibet Railway, the Capital Airport, Qingdao Bay Bridge, the Beijing-Shanghai high-speed railway, Nanjing Railway Bridge, the Nanjing Yangtze River Bridge, the four bridges by customers!

工厂占地面积3000平方米，主要生产采掘机滚筒、齿座、截齿、斗齿，服务于大同煤矿集团、西山煤电、宁煤集团等全国煤炭企业，旋挖产品服务于北京地矿，青藏铁路，首都机场，青岛海湾大桥，京沪高铁，南京铁路大桥，南京长江三桥，四桥等深受用户好评！

The coal-forming model s in late permian eporch in Guangxi are divided into "two classes and three types", the two classes are peat bog coal-forming model and peat flat coal-forming model , the three types are bog type, tidal flat type and peat flat type coal-forming model s.

广西晚二叠世成煤模式划分为&两类三型&，即泥炭沼泽成煤模式和泥炭坪成煤模式两类，沼泽型、潮坪型和泥炭坪型等三型。

With the rapid development of boiler unit and the scale and capacity to high-parameter and large capacity in fossil fuel power plant,in order to protect the unit running safety,requirements for certificates of coal is also growing.How to improve the utilization of space,reduce area and the amount of soil,saving the investment of equipment,reasonable and necessary optimization for coal storage system in engineering design,without reducing the reliability of coal handling system and the security of coal suppl...

随着火力发电厂锅炉机组和规模容量向高参数、大容量的快速发展，为确保电厂运行安全，要求电厂的储煤量也越来越大，如何提高场地的利用率，缩小占地面积，降低土石方量，节约设备投资，在工程设计中对贮煤系统进行合理和必要的优化，同时又不降低输煤系统的可靠性和机组供煤安全，是国内现代化火力发电厂储煤场设计中所面临的现实问题。

With the raw material of gas coal and weakly caking coal-char ,a set of formed cokes were prepared by changing the size of gas coal and weakly caking coal-char .

以气煤和弱粘煤半焦为原料，通过改变气煤和弱粘结煤半焦的粒度制备出一系列的型焦。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48