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- surface coal fields 露天煤田
- The ash may be from the north east of theDatong coal field. 火山灰可能来自大同煤田东北方向。
- Yangquan City, the northeast corner of the Qinshui coal field. 阳泉市沁水煤田的东北角。
- The southernmost of the four main islands of Japan contains coal fields. 日本四个主要的岛屿中最南的一个拥有煤藏。
- Surface collapse of coal field is one kind of geological disaster with great hazard, which may result from distortion and breakout of overlying strata that lose their support after underground coal beds are excavated in a large area. 摘要采煤区地面塌陷是由于地下煤层大面积采空引起上覆岩层失去支撑而变形崩落最后导致地面沉降一种危害很大的地质灾害。
- An improved mode of coal cutting is recommended aiming at the specifical status of surface collapse of coal field in Yanzhou city, and several control policies on restoration and reclamation of collapsing land are also put forward. 针对兖州矿区的具体塌陷状况提出了改进采煤方式、对塌陷土地进行恢复和复垦等几点防治措施。
- The values of calcaneal BUA,SOS and STI in the underground coal miners were significantly lower than those of the surface coal miners(P<0.01). 井下矿工跟骨超声振幅衰减(BUA)、超声声速(SOS)和刚度(STI)各年龄段组与井上组比较均显著降低(P<0.;01)。
- Part Three: Visit Yuanbaoshan Electric Power Plant and Pingzhuang Surface Coal Mine near Chifeng and see “SY”and “JS”steam locomotives there. 第三部分:参观赤峰附近的元宝山电厂以及平庄露天矿，感受那里的“上游”和“建设”型蒸汽机。
- The evaluation of unreclaimed land productive potential in surface coal mine are keys for promulgating land reclamation planning in the mine. 露天煤矿待复垦土地生产潜力评价是编制土地复垦规划的一个重要内容。
- The coal reserve of Gondwana coal fields in India accounts for 99%of that in this country. 冈瓦纳系煤田占印度国家煤炭储量的99%25。
- BAI Zhong-ke.Ecosystem damage in a large opencast coal mine: A case study on pingshuo surface coal mine, China[J].Acta Ecologica Sinica, 1999, 19(6):870-875. [3]白中科.;大型露天煤矿生态系统受损研究:以平朔露天煤矿为例[J]
- Using seismic inversion technique to solve lithological problems in coal fields is widely used in seismic exploration. 以开滦集团范各庄矿某采区岩性勘探为例,介绍利用地震反演技术解决煤层顶底板岩性问题。
- The coal reserve of Gondwana coal fields in India accounts for 99% of that in this country. 冈瓦纳系煤田占印度国家煤炭储量的99%25。
- Hegang coal field, of the type of a (inland) faulted basin far from the sea, was formed in the early Neo-Jurassic age about 140 million years ago. 鹤岗煤田约形成于一亿四千多万年前的晚侏罗世初期，是远海内陆断陷盆地型煤田。
- It points out that platform-type coalfields exist in the area and discusess the reworking of the coal fields by diwa tectonism. 指出本区存在地台型煤田;并探讨了地洼构造对煤田的改造过程。
- The geology survey of Hegang coal field are introduced and some obvious characters of workable seam are compared. 介绍了鹤岗煤田的地质概况,并对主要可采煤层的一些比较明显的特征进行了对比。
- The practice in Antaibao Surface Coal Mine shows that the three measures can well solve the problems of disproportion in inner dumping space and the increase of transportation distance. 在安太堡露天煤矿进行了实践，结果表明：采区间搭桥、反向内排和筑路式组沟开拓运输系统在大型近水平露天煤矿转向期间有效地解决了内排空间不均衡的问题，缩短了剥离物的运输距离。
- The exploration result basically accords with the geologic profile of coal field bores and bore validating of goaf. 探测结果与煤田钻孔地质剖面图、采空区钻孔验证基本吻合。
- Studies optimization problems which a urban coal field location layout and the coal allocates and dispatches. 摘要研究一个城市煤场布局与煤炭配送的最优化问题。
- It provides an important model for Jiaozuo coal mine and North China coal field. 为焦作矿区及华北型煤田高产高效矿井建设提供参考模式。
