| 1. | Study on hard roof working face first pressure managing way 坚硬顶板工作面初压管理的研究 |
| 2. | Ground pressure behavior of hard roof mining face 复合型坚硬顶板高档普采长壁工作面开采实践 |
| 3. | Influence of key roof on rock burst in sanhejian mine 三河尖煤矿坚硬顶板对冲击矿压的影响分析 |
| 4. | Dynamic forecasting and roof support quality monitoring of rigid roof located 坚硬顶板条件的支架设计分析 |
| 5. | Safe mining technique for coal face with large mining height and hard roof 坚硬顶板工作面矿山压力显现特征 |
| 6. | A roof - coal - discharging test mining by predetonation in super high seam 坚硬顶板特厚煤层预爆破放顶采煤试验 |
| 7. | The support designing analyses applying in big picking high and hard roof condition 坚硬顶板下综采准备工作面扩帮立架施工工艺 |
| 8. | Clean and fast construction technology for strap - laneway of thin coal bed with hard upper plank 坚硬顶板薄煤层皮带巷洁净快速施工技术 |
| 9. | The research on controlling hard and thick roof in the working face of cuijiazhai colliery 大采深条带开采坚硬顶板工作面冲击矿压治理研究 |
| 10. | The compareness of special support and ordinary support under hard roof of conventional face 普采工作面坚硬顶板条件下有无特殊支护的比较研究 |