查询词典 coal

Such an increase in the province, the country is rare; Huainan Coal Mine tree "Buttonwood Tree" also attracted a number of coal-machine "Golden Phoenix", the world's largest coal enterprises Bucyrus U.S. companies, and China's largest coal - machine manufacturing enterprises in Zhengzhou coal came, one after another with our "marriage"; there are mine construction projects, electric power construction projects, steadily, and technical services in the provinces in full swing and so on, the development of the situation thriving.

这样的工作量在全省、全国都是少有的；淮南煤矿这棵"梧桐树"还引来众多煤机"金凤凰"，世界煤机大企美国比塞洛斯公司来了，中国最大煤机制造企业郑州煤机来了，纷纷与我们"联姻"；还有矿井建设项目、电力建设项目稳步推进，技术服务在外省的全面铺开等等，发展局面欣欣向荣。

Based on the analysis of the coal industry, upgrading the coal industry to find quality, optimizing the industrial structure of the coal measures to promote the coal industry and resources to economic development, and to the development of coal in Shanxi Province as a case for analysis.

通过对煤炭产业的分析，找出提升煤炭产业素质，优化煤炭产业结构的对策，促进煤炭产业和资源经济的发展，并且以山西省煤炭作为案例进行了分析。

When there are many coal beds and many kinds of coal and different property of coal in the same ore district, how to define the structure of coal dressing product,it's the problem which the specialized field of coal dressing technical personnel often think over .

当同一矿区具有多煤层、多煤种、不同特性的原煤时，如何确定选煤产品结构，使资源得到合理利用、使企业得到最大利润，是选煤专业的技术人员经常考虑的问题。

The Inner Mongolia Daqingshan coalfield have Shuanmazhuang coal measures and Shiguai coal measures,in which G,J and L coal seams in Wudanggou Formation,Shiguai coal measures are major mineable coal seams in the coalfield.

内蒙古大青山煤田包括拴马桩煤系和石拐煤系，其中石拐煤系五当沟组的GJ、、L煤层是大青山煤田主要可采煤层，煤岩组分中镜质组占绝对优势，具有较强的生烃能力。

The study showed that interaction of co-carbonization of coal tar pitch and lean coal was the coaction of physical bond and chemical interaction, in which the bond state of coke interface was improved by physical bond, and coal tar pitch varied the carbonization behavior of lean coal through chemical interaction with the increase of the blending ratio of coal tar pitch, the caking property of coal blend was greatly improved, OTI value of coke was increased, while ISO value was reduced.

其中物理融合表现在使焦炭界面结合状态改善，化学相互作用表现在煤沥青使贫煤的炭化性能发生变化。随煤沥青配比的增加，配煤黏结性有较大改善，焦炭OTI值增大，ISO值减小。

Five typical coals of low-to-medium rank (Huolinhe brown coal, Majiata non-caking coal, Datong weakly caking coal, Huozhou gas coal, Lingshi fat coal) and their macerals are prepared. The molecular structure and the oxygen functional groups of the selected coals and their macerals are studied by means of the conventional coal properties analysis, chemical analysis and the advanced instrumental methods such as FTIR,XRIK 13C-NMR.N XPS. The molecular structure characteristics, regularities and the results are discussed. Additionally, the total oxygen content and distribution characteristics of different oxygen functional groups in the raw coals and their macerals are studied.

本文中选取了中低变质程度煤中的五种典型煤种——霍林河褐煤、马家塔不粘煤、大同弱粘煤、霍州气煤、灵石肥煤以及它们的不同显微组分作为研究对象，采用了常规的煤质分析、化学分析法以及先进的仪器分析法如傅立叶变换红外光谱、X射线衍射、高分辨固体~(13)C核磁共振谱~(13C-NMR及X光电子能谱等方法，全面地研究分析了所选煤样的惰质组、镜质组的分子结构及煤中氧的赋存形态，得到所选煤样惰质组分的分子结构特征及结构参数，分析比较了惰质组与镜质组在分子结构上的差异性，并讨论了惰质组分的分子结构特征及结构参数随煤变质程度的变化规律；同时，通过研究得到了所选原煤样及其显微组分中总氧含量及各种不同类型含氧官能团的含量分布特征。

Plates are focused on the development of the energy industry, the main "Mine leg of a factory," that is: Yonghong coal mines, coal mines Yongan, Hou Coal Mine, mines end, in the Coal Mine, Mine Yonghe, Kingsford Terrace coal Cargo Qin stations and Ze coking plant eight enterprises are located in the rich coal resources in Qinshui County of Jincheng City, Shanxi Province, a design production capacity of 4 million tons, rail shipments of the 2 million tons.

能源板块属于重点发展行业，主体包括&六矿一站一厂&，即：永红煤矿、永安煤矿、侯村煤矿、端氏煤矿、中村煤矿、永和井田、嘉峰煤炭集运站和沁泽焦化厂八个企业，均位于煤炭资源丰富的山西省晋城市沁水县境内，现年设计生产能力为 400 万吨，铁路年发运量 200 万吨。

Hung-fat, director of Shanxi Province Economic and Trade Bureau, the provincial government leadership has repeatedly stressed that the requirements of the province's power plants can no longer take the main source of electricity supply pressure at the local small coal kiln, the quality of the local small coal kiln no guarantee that the supply of instability, although a certain degree of price advantage, but said变就变is not conducive to security and stability of plant production, with the coal industry in our province to implement three major strategies of small coal mines and the implementation of resource integration, requested the power enterprises to adjust the coal supply structure as soon as possible, we must allow for large coal mines to account for more than 50%.

据山西省经委主任洪发科介绍，省政府领导多次强调，要求省内的电厂再不能把电煤供应的主要来源压在地方小窑煤上，地方小窑煤质量没保证、供应不稳定，虽有一定的价格优势，但说变就变，不利于电厂的安全稳定生产，随着我省煤炭行业实施三大战略，对小煤矿实施资源整合，要求电力企业要尽快调整煤炭供应结构，一定要让大矿供的煤能够占到50%以上。

The results indicate the mutual effect exists between the single coals, which could increase the maximum of thermal weight loss obviously and has a small effect on the temperature extent of the weight loss. The main pyrolysis production of coal is coke, but the main production of waste plastics is tar; the yield of water became decrease and the gas became increase by adding the waste plastics. And the CRI and CSR decreased with the ratio of waste plastics in coal. The main ingredients of tar from blend coal are aromatic hydrocarbon and alkane, while those of waste plastics are alkane and alkene. The result of co-coking with coal and waste plastics make the light tar and the aromatic hydrocarbon increase obviously. The combustible ingredient(CO、H2、CH4) of gas from co-coking with coal increase at different ratio; Co-coking with coal and waste plastics could increase the combustible ingredient and thermal value of gas.

结果表明，废塑料与煤混合物在煤的塑性温度区间内存在明显的相互作用，使最大热解失重峰迁移，热解速率变大，且随着废塑料配比的增加呈现规律性的变化；煤热解产物固体焦炭为主，而废塑料的热解产物以焦油为主，废塑料的添加使得总体焦炭和水产率下降，焦炉煤气和焦油的产率增加，即共焦化呈现出明显的&增油减水&效应；随着塑料添加量的增加，焦炭热强度呈现劣化趋势；废塑料代替瘦煤配煤炼焦可使其比例提高到3%而不影响焦炭的质量；纯煤焦化所得焦油以芳香烃类和烷烃类为主，而废塑料热解焦油以烷烃和烯烃为主；废塑料配煤炼焦，可使得的焦油呈现&环构化&和&轻质化&趋势；废塑料的添加可使煤气中的可燃组分(CO、H2、CH4)的含量均有不同程度的增加；废塑料配煤炼焦可以优化焦炉煤气的组成，增加煤气中的可燃组分，提高焦炉煤气的热值。

It is important to reduce the span of the hard roof to avoid its impact load on supports. However, at longwall top coal caving face, the periodical weight of roof is a main factor that crushes the top coal, which is beneficial to the top coal recovery. How to use the roof pressure safely is of crucial importance in top coal caving. Based on field monitoring, theoretical analysis of strata movement, the numerical model of compound structure of hard roof stepped cantilever and the top coal cantilever beam is built, and the parameters of the model are also determined. The elasto-plastic finite element method is used to analyze the effect of hard coal fracture under the abutment pressure of hard roof, and the cracking coefficient is defined according to the stress state of the element.

通过对岩层移动的现场观测，建立了&两硬&条件综放采场台阶悬臂—悬臂梁组合的煤岩组合结构力学模型，并以此煤岩结构为基础，建立&两硬&条件综放采场顶煤压裂的有限元数值模型，分析了坚硬顶板不同来压步距对坚硬顶煤的压裂效应，并确定了合理的支架阻力，从而对坚硬顶板进行有效的控制，消除坚硬项板对采场的冲击隐患，同时保证采场矿压对坚硬顶煤的有效压裂，达到提高顶煤回收率之目的，由此形成了坚硬顶煤、坚硬顶板条件下综放采场围岩控制的基本理论和方法。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷