查询词典 coal

Although the research works of coal chemistry are facing up to difficulty, it is sticked to and developed in many countries on account of the stable status and fine prospect of coal in energy resources.

由于煤炭在能源中的地位稳固、前景良好，煤化学研究虽然面临困难，但各国仍在坚持和发展。

Main service range: the advisory service, staff training, make post system, design of coal tar deep processing, technological transformation, produce and operation, Select the design of the coal works, Device fabrication.

主要服务范围：炼焦技术开发、技术转让烘炉开工、咨询服务、人员培训、岗位制度制定、生产管理；煤焦油深加工的设计，技术改造、开工生产；选煤厂的设计，设备制造。

Sedimentary system of coal-bearing series, depositional system of coal-bearing series ...

含煤岩系中有成因联系的一套沉积相的规律组合。

Coal accumulation occurs mainly in peat paleo-bog and is also a key link during the sedimentation of coal-bearing strata.

古泥炭沼泽是煤聚集的主要场所，也是含煤地层沉积过程的重要环节。

Coal-bearing formations in upper Paleozoic were well developed in Jiyang area ,and this is essential for scale accumulation of coal-genetic gas.

济阳地区煤系有机质二次生烃特征及勘探思路煤成气是一种重要的天然气资源，济阳地区上古生界煤系地层广泛分布，是煤成气形成规模聚集的基础。

Despite international calls to limit coal-burning emissions, Czech companies are pushing to extend coal production.

尽管国际社会呼吁限制燃煤排放物，捷克企业仍在大力扩张煤炭生产。

Combining with the situation of the westren district of Jincheng Coal Mine, this paper analysed the influence of the design parameters of the helix roller in coal-cutting machine on practical effect, then put forward some improving measures.

结合晋煤集团西区煤质状况，分析了影响采煤机滚筒使用效果的设计参数，对提高块率、装煤效果、构强度提出了改进措施。

shanxi which is a large coal-producing province has the pivotal position in china's coal supply.

山西是我国的产煤大省，在我国煤炭供给中具有举足轻重的地位。

China is the world's largest coal-producing country, which is in need of a coal-related futures exchange to get more rights on international pricing.

中国是世界上最大的煤炭生产国，这是需要一个煤有关的期货交易，以获得更多的权利的国际价格。

Mine workers move coal to be processed in Shenmu, which is one of the biggest coal-producing cities in China.

煤矿工人正在陕西神木市运煤，这是中国最大的产煤地之一。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。