| 1. | Using u l type ventilation to treat gas in upper corner
型通风处理上隅角瓦斯 |
| 2. | Using auxiliary fan to treat gas in upper corner
局部通风机引排上隅角瓦斯技术的应用 |
| 3. | Upper corner gas control in the fully - mechanized faces of tangan mine
唐安煤矿综放工作面上隅角瓦斯综合治理研究及实践 |
| 4. | The gas control in blind angle of synthesis falling place face in a high gas mine
张小楼井大倾角综放面上隅角瓦斯治理技术 |
| 5. | On the management of corners over amp; below the bolting working surface with crossheadin
顺槽为锚杆支护工作面上下隅角的管理 |
| 6. | Technology of gas - control in up - corner on large - obliqity mine face in zhangxiaolou mine
严格监督检查综合治理综放面上隅角瓦斯 |
| 7. | Comprehensive control technology of gas in up - comer of 3209 workface in tang ' an coal mine
唐安煤矿3209综放面上隅角瓦斯综合治理技术 |
| 8. | Using gas drainage technology of waste pipe laying to dispose gas for return air corner in coal mining face
采面回风隅角埋管抽放治理瓦斯 |
| 9. | Complex control of gas at upper corner angle of medium - thick seam with fully mechanized caving mining
中厚煤层综放工作面上隅角瓦斯综合治理 |
| 10. | Elementary analysis on gas control by placing large - diameter drainage pipe in advance at upper corner angle
浅析上隅角大管径预留管治理瓦斯 |
