| 1. | Establishment contents of mining coal work regulation
采煤作业规程的编制内容 |
| 2. | At one time they used to mine coal in these valleys
他们一度在这些重重峡谷中采煤炭。 |
| 3. | Possibility of mining coal seam under villages
煤矿村庄下压煤可采性分析 |
| 4. | The man mines coal where day seems like night
这个人在即便是白天也犹如晚上的地方开采煤炭。 |
| 5. | Industry and mineiron steel industry mine coal electric power
工矿钢铁行业矿山煤碳电力行业 |
| 6. | Simulation on visco - elastoplastic damage settlement by mining coal
开采沉陷粘弹塑性损伤模拟分析 |
| 7. | I know because i ' ve mined coal . see you
我以前也做过矿工再见 |
| 8. | Geologic conditions for mining coal of undergroup coal seams , nantun mine
南屯煤矿下组煤开采地质条件 |
| 9. | Application of pdc bit in sihe mine coal seam predrainage drilling
钻头在寺河煤矿瓦斯预抽放钻井中的应用 |
| 10. | Method of sampling run - of - mine coal
生产煤样采取方法 |
