煤田

With the development of society economy and the increscent requirement for energy sources, the gas source exploitation and its using become more and more attention.

我国的绝大多数煤田均为低渗透煤层，因此开展低渗透煤层的瓦斯抽放研究具有重要的社会价值和经济效益。

With cluster analysis method, coalbody structure is classified into primary constructional coal ruptured coal, mortar coal and mylonitic coal.

此项研究弥补了煤田地勘过程中煤层气含量测试精度不高，煤体结构破碎之不足。

By analyzing the data of drilling core, the authors studied the depositional features, sequence stratigraphy, paleogeographic evalution, and metallogeny regularity of oil shale from the Yaojie Coal Field in Minhe basin of Gansu.

通过岩芯钻井资料的综合分析，对民和盆地窑街煤田油页岩沉积特征、层序地层、古地理演化和成矿规律进行了研究。

Through testing 45 carbonate samples collected from PermoCarboniferous caol measures of the Hedong coalfield,the distributions characteristics of carbon and oxygen isotopes in sequences are analyzed,whose feasibilities for sequence subdivision and correlation,as well as for study of relative sea level variations and late Paleozoic facies are also discussed.

系统分析了河东煤田上石炭统（C2）—下二叠统下部（P11）45个碳酸盐岩样品的碳氧同位素在层序中的分布特征，探讨了碳氧同位素应用于层序划分及对比、相对海平面变化研究及晚古生代地层沉积相研究的可能性。

On the basis of study on the petrographic characteristics of coal 2 -2 in Shenmu Coalfield,three types of peat swamp are recognized,i.

在研究神木煤田2－2煤层煤岩特征的基础上，划分了三种泥炭沼泽类型，即开阔水体草本沼泽、陆地森林沼泽和潮湿森林沼泽。

Post-mining or gob preventive injection, sand-filling or sealed separation in the gob with potential spontaneous fire, Visional judgement or index jndgement for prediction, nitrogene-injection for fire prevention, and control, spraying oxidation retardent to delay coal oxidati...

同时提出某些预防煤田自燃发火的对策——采后或采空区预防性注浆；对可能产生自燃火灾的采空区注砂或充填，加以封闭隔离；采用直观判断、指标判断等方法进行预测预报：注氮防灭火；喷涂阻化剂以延缓煤氧化；选择合理的开拓方式和回采方法：选择合理的通风系统和利于防火的通风方式；控制向采空区的漏风等。

By these technical methods and obey the principle which is complete exploration; find condition; drainage is first combined with blind in and mine is the last after drainage which after exploration, sandrock water is controlled completely.

通过这些技术手段，遵循&综合勘探，查明条件，以疏为主，疏堵结合，先探后疏，先疏后采&的原则，彻底治理砂岩水，对梁宝寺矿井的防治水工作及巨野煤田内其它矿井的防治水工作有一定的指导和推广应用价值。

Identification and mapping of the small-amplitude faults in the coalfield and prediction of the methane saturated formations in coal province based on the AVO analysis in a thin-layered cross-section that offered by Tesseral / TetraSeis .

在煤田中小幅度断层的识别和制图以及在大煤区中由Tesseral／TetraSeis提供的基于在一个薄层剖面中的 AVO 分析来预测甲烷饱和地层等来自于前苏联的技术，有助于新矿脉的设计，了解水动力并了解甲烷运移的可能途径

This article tries to summarize experiences of the small collieries in mining shallow coal seam in north of Shanxi Province, and suggests to reform unadvanced mining of room and pillar to longwall remaining coal pillars support mining which can largely inprove the coal recovery rate.

在总结陕北煤田小煤矿开采浅部煤层经验的基础上，建议将落后的房柱式改革为长壁留煤柱支撑法开采，以较大幅度提高采出率。

Field survey, sampling and testing were used to discuss the characteristics of soil water content between different subsidence stages. The results show that after mining collapsing, the soil water content and soil water storage capacity of subsidence area is obviously less than the nature area, especially for the fissure zone. It is indicated that the collapsing fissures are extremely disadvantageous for soil water-holding capacity and the conditions of vegetational cover on the subsidence area also confirmed this result.

现以神府东胜煤田为研究背景，选择两个主要塌陷阶段分布区大柳塔矿区双沟村原农场和补连塔矿区原补连沟村作为研究区，采用野外勘查、取样测试与室内参数分析综合研究的方法，对采矿塌陷不同阶段表层包气带土壤水分进行对比分析，结果表明，采矿塌陷后，塌陷区尤其是塌陷裂缝区的土壤含水量与土壤储水量值均小于未塌陷区，说明塌陷裂缝对土壤的持水作用具有非常不利的影响，塌陷区与未塌陷区的地表植被覆盖情况也证实了这一点。

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