The influence of aquifer upon the mining coal seam is estimated.
预测了侏罗系含水层对煤层开采的影响。
The process of mining coal and its combustion is associated with extensive air, water and land degradation.
煤炭开采及燃烧过程与大气、水的污染和土地退化密切相关。
The characteristics of damage, movement, evolution in mining coal bed in weathered zone were discussed mainly.
重点论述了风化带内煤层开采的覆岩破坏移动演化特征；
Successful predicting and controlling technology for safety mining coal on the aquifer with high-pressure are provided.
为深部煤层高承压含水层上安全开采提供了一套较成功的预报和控制技术。
It has been 1500 years old to mine coal in Datong area. Mining coal has caused irreparable damage to water environment.
大同地区煤炭开采有1500年的历史，因为煤炭开采，现已造成对水环境无法修复的破坏。
In order to provide scientific basis for mining coal-bed methane, it is necessary to analyze the pressure on well bottom.
为了给煤层气勘探和开发提供理论依据，必须对煤层气井井底瞬时压力进行分析。
Accurate prediction of the tendency of spontaneous combustion risk in mining coal layers is of great importance in production safety of coal mine.
正确预测开采煤层自燃发火的趋势与危险性，对煤矿安全生产具有重要的指导意义。
Mining coal is one of primary factors to damage land resources, it not only decreases cultivated area, but also causes environment of mine destruction.
煤矿开采是对土地资源破坏的主要部分之一，不仅使耕地面积减少，而且造成矿区环境的破坏。
There are plenty of water resources and land resources to be reclaimed in subsided land of mining coal with higher level of underground water on plains.
平原区高潜水位采煤塌陷土地拥有丰富的水资源，地势低洼，土壤接近饱和湿度，为人工湿地的规划建设提供了良好的自然条件。
The slope adjustment mining are analyzed. The production experience of reducing frequency of fully mechanized mining coal work-face removing is provided.
通过对综采工作面调斜回采的总结分析，为综采工作面减少搬家次数及转采提供了借鉴经验。
Through the analysis of the water environment influenced by the mining coal, the effective methods to decrease effect on water environment are put forward.
通过大同地区采煤对水环境的影响分析，寻找出降低对水环境影响的有效方法。
When mining coal in mine, danger of inflammable explosive damp exists all along, once damp explosion accident occur, normally, it can cause disastrous consequence.
在井下煤炭开采过程中，易燃易爆气体瓦斯危害始终存在，而瓦斯爆炸事故一旦发生，一般会造成灾难性的后果。
Besides, elaborate technology economy compare about the technics and technology of mining coal bed methane by drilling borehole down and cross the seam is carried out.
此外，本文还对顺层钻孔和穿层钻孔抽采煤层气的工艺技术进行了详尽的技术经济比较。
The paper described in detail the high undercover large mining coal face roof control the basic requirements of the roof control and the strengthening of specific measures.
该文详细叙述了大采高卧底煤工作面顶板控制的基本要求和加强顶板控制的具体措施。
Through the research of high gas and multi-water-bursting hazards prevention techniques in Jiaozuo coal mine regions, the mining coal method of caving working face is found.
通过对焦作矿区高瓦斯多水害防治技术研究，找出适合该条件下的炮采放顶煤模式的采煤方法。
On the basis of investigating and analyzing the influence of coal-mining on the groundwater of Taiyuan City, the paper presents measure to protect groundwater during mining coal.
在调查分析太原市煤矿开采对地下水的影响特点等的基础上，提出煤矿开采对地下水的保护措施。
The move crevasse superimposes mutually and constitutes the complex underground crevasse network, which are produced by geologic structure crevasse in Fuxin Basin and mining coal.
盆地内地质构造断裂和采煤活动中产生的采动断裂互相叠加，构成了十分复杂的地下断裂网络。
Based on achieved rock movement parameters and experience of mining coal under buildings, determine a kind of optimum method of mining coal under village and take a primary approach.
通过结合矿区已获得的岩石移动参数和已有建筑物下采煤的经验，确定出一种村庄下采煤的最优方法，并进行了初步探讨。
The technique has been successfully used in Xingdong coal Mine and the good results of disposing waste in underground and mining coal resource under the surface building have been realized.
此项技术在邢东矿井得到成功应用，实现了矸石井下处理与建筑物下煤炭资源的开采利用。
In the research field of mining coal, it is a new research direction that three-dimensional graph technology is applied to simulate the production process of fully mechanized coal caving face.
运用三维图形技术模拟综采工作面生产过程是煤炭开采研究领域的一个新方向。
The technics of adding face for plow face is introduced. The better solution way to reasonable mining coal resource is provided. The particularity of equipments for thin coal seam is expounded.
对刨煤机工作面加面工艺进行了系统介绍，对合理的煤炭资源开采提供了更好的解决办法，并针对薄煤层开采设备特殊性作了细致的阐述。
This paper analysis a variety of ventilating systems adopted in the coal face in mining coal of our country by using the method of statistics and compares their advantages and the range available.
本文用统计分析法介绍和分析了我国煤炭开采中，采煤工作面采用的各种通风系统并对比其优点和适用范围。
The companies building the canals to transport coal needed surveyors to help them find the coal deposits worth mining as well as to determine the best courses for the canals.
修建运河运输煤炭的公司需要测量员帮助他们找到值得开采的煤矿，并确定运河的最佳路线。
The canaries in coal mining areas may be an animal threatened by climate change.
煤矿区的金丝雀就可能是一种正受气候变化威胁的动物。
We have raised the coal output by using better mining methods.
我们利用更好的采煤法增加了煤炭产量。
Statistically, coal mining remains more dangerous than other kinds of mining, but only slightly.
数据上看，煤矿开采的危险性要高于其他类型开采，但差别微乎其微。
But the impacts of coal mining are massively greater.
但是煤矿的影响要比这个大得多。
But the impacts of coal mining are massively greater.
但是煤矿的影响要比这个大得多。
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