1.
Protective coal pillar set method and development tendency in China

我国保护煤柱留设的方法及发展趋势
2.
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
3.
Research on Reasonable Dimension of Protective Pillar for Cross-cutin Steeply Inclined Coal Seam
急倾斜煤层石门保护煤柱合理尺寸研究
4.
Influence of Coal Strength Coefficient on Width of Protective Coal Pillar

煤的强度系数对井巷保护煤柱宽度影响分析
5.
The Program Development and Application of Design Architectural Complex Protective Coal Pillar
设计建筑群保护煤柱的程序开发与应用
6.
Method of designing protection coal pillar in mine area based on prediction of surface deformation
基于地表变形预计的矿区保护煤柱留设方法
7.
Influence analysis on railway in coal mine area raised by local exploitation of protective coal pillar in industrial square
工业广场保护煤柱局部开采对矿区铁路的影响分析
8.
The partial mining and practice of the industrial square pillar of 8-1 coal seam in linnancang mine
局部开采保护煤柱对矿井生产系统建筑物的沉陷预测
9.
Only coal pillar has enough strength, it can ensure the stabilization of the support.

煤柱具有足够的强度,才能够保证支护空间的稳定。
10.
Numerical Simulation of Anchored Bolt Supporting for Roadway in Small Coal Pillar with Large Inclined Angle
大倾角煤层小煤柱巷道锚杆支护数值模拟研究
11.
CHAPTER V PROTECTION OF COAL MINING AREAS

第五章 煤矿矿区保护
12.
Mechanism of Narrow Pillar Protecting Roadway and Support Technology of Gob-Side Entry in Deep Mine
深井沿空巷道小煤柱护巷机理及支护技术
13.
Roadway Supporting Technology Influenced by Mining and Protective Pillar Design

多次动压影响巷道支护技术及护巷煤柱留设
14.
The fire protection design on the bunker/hod of the coal disposal system

燃煤处理系统煤仓/煤斗的消防保护设计
15.
Not secured by spars or stays. Used of a sail.

无保护的没有船柱或支索保护的。用于帆船
16.
Study on Safe Mining of Island Coal and Roadway Maintenance Technology;

孤岛煤柱安全开采及巷道维护技术研究
17.
Application of Pressure Bolting Supporter Under the Influence of Small Coal Mining Pillar Roadway
采动影响下小煤柱巷道让压锚杆支护的应用
18.
Support Technology of Small Coal Pillar Goaf-side Gateway for Fully Mechanized Top Coal Caving Mining Face in Deep Mine
深部综放工作面小煤柱沿空巷道支护技术