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- Thin coal stratum 薄煤层
- Clastic rock and low-grade metamorphic rock, and the non-disease area is mainly in the coal stratum. 通过对重病区、轻病区及非病区人群的环境摄碘量估算。
- Controlled source audio magnetic telluric (CSAMT) is an effective approach to detect deep coal stratum in complicated-terrain mountain. 摘要对于复杂地形山区深部煤系地层的勘探，可控源音频大地电磁法(CSAMT)是比较有效的一种方法。
- The State shall encourage coal mining enterprises to carry out second mining or extract residual coal at the margins of mining areas and very thin coal seams. 国家鼓励煤矿企业进行复采或者开采边角残煤和极薄煤。
- The technology of roadway protection with coal waste residue concrete and application in thin coal seam are introduced. 介绍了煤矸渣混凝护巷技术及其在薄煤层中的应用。
- The reserves of thin coal seam shearer and the developing trend of coal seam shearer of our country are analysed. 分析我国薄煤层储量以及薄煤层采煤机的发展状况及趋势。
- The author supposed that it is feasible for us to take the methods discussed in this paper to handle the issue of the coal stratum pressure.Some metrical problems is also studied here in the paper. 通过对钻孔煤层气压力测试机理分析,肯定了该方法在煤层气开发评价工作中应用的可能性,并强调了测试中应注意的几个问题。
- Using individual hydraulic prop in thin coal seam face is better than the others in the aspect of support strength,premary supporting force,shrink amount and safety. 在薄煤层工作面中使用单体液压支柱，在支护强度、初撑力、可缩量、安全保障及操作人员安全上，都优于其它单体支护材料。
- Baste on the analysis of study contents and methods of coal faults,mechanic characteristics of rock mass in coal stratum and the theory of cause of fault formation were put forward. 本文在全面分析煤层断层研究内容、研究方法的基础上,提出加强煤系地层岩体力学性质研究、不断完善断层成因理论是煤层小断层成因预测的基础。
- How to extract thin coal seam remains a problem faced by all hydromines.Hydraulic mining of such seam in a hydromine proves to be superior to the conventional mining method. 薄煤层如何开采是水采矿井共同面临的一个问题,在水采矿井搞水采比搞旱采有优势。
- The craft manner of full-mechanized mining in thin coal seam is reformed and optimized by computer simulation, optimization and spot test in this paper. 通过计算机模拟、优化和现场实测，对薄煤层综采工艺方式进行了改造和创新，优化了薄煤层综采工艺方式。
- This article recommends a mining technology for thin coal seam with mixed mining,exceeding length and double unit face mining method innovated by Tianchen coal mine. 本文介绍了田陈煤矿创新的综采与普机采混合、工作面超长布置、对拉、旋转调采、矩形和梯形不规则形状的薄煤层开采技术;
- Geological and hydrgeological conditions of Haizi Coal Mine is very complicated,which frequently disclose faults and thin coal bedzones,and seriously confine normal production and supersession. 海孜煤矿地质及水文地质条件极其复杂,频繁揭露断层及煤层变薄区,严重地制约了矿井的正常生产与接替。
- This mining technology is innovations in the layout of this kind working face,mining method and technologies act and solves many technological difficult problems for the thin coal seam mining. 该开采技术在工作面巷道布置、开采机械、采煤方法、回采工艺等开采技术上进行综合创新,解决了薄煤层开采的技术难题。
- The technology of coal plough have been applied in the exploitation of medium-sized and thin coal seam through analysing and comparing the characteristic of cylinder mining machine and coal plough. 对比分析了滚筒采煤机与刨煤机的特性,并将刨煤机开采技术运用于中等及薄煤层的开采中,提高了煤炭生产效率,实现了工作面采煤的全部自动化,具有广泛的推广和应用价值。
- Collapse Treatment for Coal Stratum of Kuigang Tunnel 葵岗隧道煤系地层坍塌处理
- It is dangerous to walk on thin ice in a lake. 在湖中薄冰上行走是很危险的。
- He has very thin legs and knobbly knees. 他腿很细，膝盖呈圆球状凸起。
- That thin red line tipped with steel. 那根细细的红线末端装有钢头。
- The thinned coal seams are not only of directional characteristics,isometric characteristics,but also show superimposed compounds from different directions. 煤层变薄带不仅在平面上的展布具有方向性、等距性和分区性等特点，而且还表现为不同方向的叠加复合。
