1.
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
2.
Research on the Pillar Extraction in Erxiashan Mining Area of Suhaitu Coal Mine
苏海图煤矿二下山采区煤柱回收方法研究
3.
Study on the Phenomenon of Dynamic Pressure of Strip Coal Pillar Recovery and Application
条带煤柱回收动压现象力学分析及应用
4.
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
5.
Exploration on Coal Pillar Recovery on Fully Mechanized Disk Area under Complex Conditions
复杂条件下综采回收盘区煤柱的探索
6.
Optimization of Ventilation System in Protection of Pillar on Recovery Roadway
回收大巷保护煤柱时通风系统的优化
7.
Study on the Key Technique of Strip Coal Pillar Recovered by Driving Roadway and Filling;
掘巷充填回收部分条带煤柱的关键技术研究
8.
Application of ZZS3800/15.5/25 Mechanized Supporter in Knife Column Recovery Coal Mining
ZZS3800/15.5/25综采支架在刀柱式回采遗留煤体回收中的应用
9.
pillar robbing
【采矿】回收矿柱法
10.
oxygen converter gas recovery process
氧气转炉煤气回收法
11.
Design of rational width of coal pillars in gateways in gently inclined shallow coal seams
浅埋缓斜煤层回采巷道合理煤柱宽度设计
12.
Use the machine of clear away the coal on work face to improve the rate of coal recovery
工作面使用清煤器 提高煤炭回收率
13.
Discussion on technical reformation of recovery system of coarse clean coal and coarse middling in Laoshidan Coal Preparation Plant
老石旦洗煤厂粗精煤及粗中煤回收系统改造
14.
Application of Non-pillar Sublevel Caving Method in Pillar Recovery
无底柱分段崩落法在矿柱回收中的应用
15.
Mine Pillars Mining with Small-scale Coal Mining Approach in Small Coal Mine
小型煤矿采用小进路采矿法的矿柱回采
16.
Comprehensive Prevention and Control Technology of Goaf Water for First Coal Pillar Mining Face in Mining Dip Gateway
回采下山巷道煤柱首采面采空水综合防治技术
17.
Feasibility Study and Mining Measures on Coal Pillars Mining Under Surface River Water Body
地表河流水体煤柱回采可行性研究及开采措施
18.
Spontaneous Combution and Firing Study on Air Return Workface of Steep Coal Seam with Pillar Mining Method in Shitun Coal Mine;
拾屯煤矿急倾斜煤层巷柱式回采面发火规律研究