| 1. | A small coal fire burned in the grate .
炉子里生着小小的煤火。 |
| 2. | On how to carry out prospecting drainage in small coal mines
小煤矿如何进行井下探放水 |
| 3. | Practice of closed water circuit at small coal preparation plant
小型选煤厂洗水闭路循环的实践 |
| 4. | Major approaches for realizing safety in production at small coal mines
小煤矿实现安全生产的主要途径 |
| 5. | Safe management of the small coal mine
矿管小井的安全管理 |
| 6. | A kind of gas monitor system based on gsm short news for small coal mines
短消息的小型煤矿瓦斯监测系统 |
| 7. | Application of grouting cable anchor in small coal pillar roadways
注浆锚索在小煤柱巷道群加固工程中的应用 |
| 8. | Small coal pillar technology to protect mine roadway and application in ningwu mine
宁武煤矿小煤柱护巷技术及其应用 |
| 9. | Reasons of water - flooding occurring frequently in local small coal mine and countermeasures
地方小煤矿水害频发的原因和对策 |
