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| 浅层地震折射波法探测采掘巷道中煤层残厚的试验 |
| 许孝庭 |
| 淮北矿务局地测处 |
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| THE EFFECTIVENESS OF APPLYING SHALLOW Seismic REFRACTION WAVE METHOD TO THE DETERMINATION OF REMNANT THICKNESS OF COAL BED IN AN EXCAVATION TUNNEL |
| Xu Xiaoting |
| Division of Geological Survey, North Anhui Mning Burean |
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