1.
Theory and practice of integrated pillarless coal production and methane extraction in multiseams of low permeability
低透气性煤层群无煤柱煤气共采理论与实践
2.
Application of the non-coal column recovery technology in fully mechanized top coal caving mining face
无煤柱开采技术在综放工作面的应用
3.
Practices on Irregular Fully Mechanized Top Coal Caving Mining Along with Fault and No Coal Pillar
沿断层无煤柱开采不规则综放工作面技术实践
4.
Application on Non Coal Pillar Mining for Gob-side Entry Retaining Technology in High Gaseous Mine
沿空留巷无煤柱开采技术在高瓦斯矿井的应用
5.
Research On Mining Technology of No-pillar Complete Caving Shortwall Mechanization
无煤柱完全垮落短壁机械化开采技术研究
6.
Research of Coal Spontaneous Combustion Laws and Preventing Technology in Easy Self-ignition Coal Seam Exploiting Without Coal Pillar;
易自燃煤层无煤柱开采自燃规律及防治技术研究
7.
relating to or resembling anthracite coal.
无烟煤的或似无烟煤的。
8.
pillar of ground
运输平巷上方的煤柱
9.
Reinforcement Mechanism of Anchored Bolt for Coal Pillar and Analysis of Influence Factors of Pillar Strength
煤柱锚杆加固机理与煤柱强度影响因素分析
10.
Second Mining under Isolated Pillar Left by Wedge-pillar Mining Method
刀柱复采跨隔离煤柱布置探索与实践
11.
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
12.
Theoretical determination of the section coal pillar's reserve-width in medium thick coal seam
中厚煤层区段煤柱留设宽度理论确定
13.
Analysis on Stability of Coal Pillar in Goaf Area of No.11 Seam in Tangshangou Mine
唐山沟煤矿11号煤层采空区煤柱稳定性分析
14.
The Standard Component Study and Calculation Program Development about Column and Beam in the House of Completely Assembling Steel Reinforced Concret;
全装配型钢混凝土住宅中无配筋煤矸石轻骨料梁、柱标准构件形式探讨及计算方法编程
15.
Waste from anthracite coal mines, consisting of fine coal, coal dust, and dirt.
无烟煤废渣无烟煤煤矿的废弃物，由细粒无烟煤、煤尘和尘土构成
16.
Principal Technology Study on Pillor Mining under the System of Room and Pillor Mining;
房柱式开采体系煤柱回收关键技术研究
17.
Brief Analysis of Type and Structures of Two-legged and Four-legged Top Coal Caving Hydraulic Powered Support
两柱与四柱放顶煤液压支架架型及结构浅析
18.
Research on Longwall Rigid Separating Pillar Mining Technology of Small Colliery in YSF Field;
榆神府矿区小煤矿长壁布置刚性隔离煤柱房柱式开采研究