| 1. | Blasting technique of hard rock in airshaft
新集风井坚硬岩石爆破技术 |
| 2. | At a southern indiana coal mine , an accident at an airshaft killed three people
位于印第安纳南部的一座煤矿通风井发生意外， 3人死亡。 |
| 3. | At a southern indiana coal mine , an accident at an airshaft killed three people
在印第安纳州南部，一煤矿通风井发生事故造成3人死亡。 |
| 4. | At a southern indiana coal mine , an accident at an airshaft killed three people
印地安那州南部一煤矿发生意外，三人死于煤矿通风口处。 |
| 5. | At a southern indiana coal mine , an accident at an airshaft killed three people
南印第安纳的一处煤矿发生事故，三名工人死于通风井中。 |
| 6. | At a southern indiana coal mine , an accident at an airshaft killed three people
印第安纳州南部煤矿发生一场事故造成回风井内三名工人死亡。 |
| 7. | At a southern indiana coal mine , an accident at an airshaft killed three people
在南印地安那的一座煤矿，通风井发生一起事故，造成3人死亡。 |
| 8. | At a southern indiana coal mine , an accident at an airshaft killed three people
南印第安纳一座煤矿发生事故，三名工人死于180米深的通风井内。 |
| 9. | Discussion on optimization of the through survey scheme for the discharge airshaft in qianqiu coal mine
千秋煤矿回风立井贯通测量方案的优化体会 |
| 10. | At a southern indiana coal mine , an accident at an airshaft killed three people
印第安纳州南部的一个煤矿的通风井发生了一起事故，致使3人死亡。 |
