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1.
Research on Support of 9~# Difficult Mining Coal Seam of Fully Mechanized Mining Tunnel in Ximing Coal Mine
西铭矿9~#难采煤层综采巷道支护研究
2.
Research on the Mining Technology for Fully-mechanized Coal Mining Face in Steep Coal Seam Under Complicated Geological Condition
复杂难采煤层大倾角综采面回采工艺研究
3.
No-operator Working Face Mining Research of Nearly Level Extremely Thin Coal Seam Being Difficult to Mine;
难采近水平极薄煤层无人工作面开采研究
4.
The Strata Behviors of Hard Coal Seam and Its Processing in Fully-mechanized Caving
综放开采时难冒煤层矿压显现特点及处理技术
5.
Sampling of coal in seam
GB482-1995煤层煤样采取方法
6.
Crawley midget miner
克劳雷薄煤层采煤机
7.
On Thin Coal Mining and Application of Plow Coal Technology
我国薄煤层开采及刨煤机采煤技术的应用
8.
The Influence of Seam Occurrence on Fully Mechanized Top Coal Caving
煤层赋存状态对综采放顶煤采煤法的影响
9.
rill cut and fill method
倾斜分层充填采煤法
10.
They extract coal from seams
他们从矿层中采煤。
11.
the part of a coal seam that is being cut.
正在被开采的煤层截面。
12.
CBM Development and Utilization for Green Exploitation of Coal Mine
开发利用煤层气 实现煤矿绿色开采
13.
Study on the Reclimaning of Fault Waterproof Coal Pillar in Mafang Mine;
马坊煤矿断层防水煤柱开采回收研究
14.
Study on Gateway Top Caving Technology for Steep-inclined Coal Seam
急倾斜煤层巷道放顶煤回采工艺研究
15.
Mining Technology of Thinner Coal Seam at Yu Jia-liang Coal Company
榆家梁煤矿中厚偏薄煤层的开采技术
16.
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
17.
Technology of "Coal and Gas Simultaneous Extraction" for High Gassy Coal Seams Group
高瓦斯煤层群“煤与瓦斯共采”技术研究
18.
Analysis of Mining Steeply Inclined Coal Seam with Bursting Risk in Small Colliery
小煤矿急倾斜突出煤层开采方法探析