查询词典 coal

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。

We are large-scale steel production enterprises, year to year massively purchases the coking coal, because you provide in the Russian coking coal's technical parameter does not have in the Chinese coking coal standard caking to refer to and the gelatinous layer greatest thickness (maximum thickness of plastic layer), therefore is unable to confirm that can satisfy our operation requirements, to guarantee that does not present the mistake in the coking coal standard aspect, asks you to provide 2 kilograms samples, examines by our company recognized.

我们是一家大型的钢铁生产企业，常年大量购买主焦煤，由于你们提供的俄罗斯主焦煤的技术参数中没有中国焦煤标准中的粘结指和胶质层最大厚度（maximum thickness of plastic layer），所以无法确认能不能满足我们的使用要求，为了保证不在主焦煤标准方面出现错误，请你们提供2公斤样品，由我们公司检验认定。

The influencing factors of coal arch camber in planomural coal bin and coal drop pipe with rectangular or circular cross section during coal drop are studied theoretically.

对落煤过程中平壁煤仓及截面形状分别为矩形、圆形的落煤管起拱的影响因素进行理论研究。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。