1.
Study on Extraction Security of No.3 Coal Seam in West Wing of Baoan Coalmine
保安煤矿西翼3煤层开采安全性研究
2.
Structure and Stablity Influencing Factors of Coal 3RD Roof in Longgu Mine of Juye Coalfield;
巨野煤田龙固井田3煤层顶板结构及其影响因素
3.
3D Seismic Integrated Exploration in 3~# Coal Seam Distensible Areas in Nanfeng in Wuyang Coal Mine
五阳煤矿南峰扩区3~#煤层三维地震综合勘探
4.
Evaluation on 3~# coal mining with water pressure condition in Guhan coal mine
古韩联营煤矿3~#煤层带水压开采条件评价
5.
The Gaussian curvature of No.3 coal seam in Qinshui basin is calculated.
计算了沁水盆地3号煤层的高斯曲率。
6.
According to the criteria, natural fracture zones of No.3 coal seam are divided into four grades and then the permeability distribution of No.3 coal seam is preestimated.
依据该标准将3号煤层天然裂隙划分为4级发育区，进而预测出3号煤层渗透率的分布概况。
7.
The feasibility study of longwall with top-caving mining in 3~# coal seam on Wangpo mine field
王坡井田3号煤层综放开采可行性研究
8.
Confined Water Controlling Technology in No.3 Coal Seam Mining in the Sihe Coalmine
寺河矿3号煤层开釆承压水防治技术研究
9.
The feature and forecast of 3~(-1) coal seam washout zones in Buertai Coal Mine
布尔台矿井3~(-1)煤层冲刷带特征及预测
10.
A study on the feasibility of high seam mining in #3 thick coal seam of Wangzhuang Coal Mine
王庄煤业3~#厚煤层大采高开采可行性探索与研究
11.
3）The starting-crack location and pressure and direction of hydraulic fracture bore which through many coal delaminations mostly lies on the intensity of furthest-weak coal delamination and interface.
3）穿层钻孔起裂位置、方向及起裂压力主要受最弱煤分层及分层层面强度的影响。
12.
The Application of the Roof Gas Tunnel on No.145 Coal Face;
顶板瓦斯巷在145采面(二采3#层俯二采煤面)的应用
13.
Controlling Factors on the Accumulation and Permeability of the No.3 Coalbed Methane Reservoir in the Southeastern Qinshui Basin
沁水盆地东南部3号煤层气藏富集高渗控制因素分析
14.
Sampling of coal in seam
GB482-1995煤层煤样采取方法
15.
Chinese classification of in seam coals
GB/T17607-1998中国煤层煤分类
16.
Crawley midget miner
克劳雷薄煤层采煤机
17.
The Technology and Experience about Gas Discharge in Construction of Return AirRoadway Through 3+4 #,5 # Thick Coal Seam in the Northern Wing of HuaJin Coking Coal Co.,Ltd.Shaqumine
沙曲矿北翼回风大巷过3+4#、5#突出厚煤层瓦斯抽放设计技术和体会
18.
The lime-stone rocks bed up against the coal.
石为岩层紧靠着煤矿层。