| 1. | How did you get in here ? - i came up the air shaft 你是怎么进来的? -我从通风管进来的 |
| 2. | - how did you get in here ? - i came up the air shaft -你是怎么进来的? -我从通风管进来的 |
| 3. | Optimium reformation practice of north air shaft ventilation system 通风系统优化改造实践 |
| 4. | . . . with gas in the air shaft . .把掩体里的人都毒死。 |
| 5. | With gas in the air shaft .把掩体里的人都毒死。 |
| 6. | Reforming control system of no . 2 fan lubricating station of huainan panyi mine east air shaft 风机稀油站电控改造 |
| 7. | Choosing and application of the emergency ventilation plan during repairing air shaft 风井井筒修复期间应急通风方案的选择与实施 |
| 8. | Comprehensive treatment to skip airleakagc outside air shaft to raise ventilation capacity 综合治理箕斗风井外部漏风提高通风能力 |
| 9. | In the air shaft 在通风管道 |
| 10. | Stability analysis of coal pillar and reinforcement technology in north air shaft in dongpang mine 东庞矿北风井煤柱稳定性分析及其加固技术 |