| 1. | Control design of roof rocks for gob - side entry
沿空留巷顶板岩层控制设计 |
| 2. | Study on the periodical damage and fractal of roof rock - mass
顶板岩体周期性损伤及其分形研究 |
| 3. | Study on the zone with rich water of the roof rock of 3rd coal seam in xinglongzhuang mine
兴隆庄煤矿3煤顶板岩层富水性分区 |
| 4. | Research on rationally arranging position of horizontal boreholes in roof rock stratum
顶板岩层水平长钻孔合理布孔层位的研究 |
| 5. | Collapse characteristics research on roof rock strata with 3dec in full - mechanized caving mining
焦作矿区煤层瓦斯合理预抽期的研究 |
| 6. | False roof rock
伪顶岩石 |
| 7. | Study on the influence laws of side pressure coefficient on roof failure of roadway in alternating stratified soft roof rock
侧压系数对巷道软弱互层顶板岩体破坏影响规律研究 |
| 8. | The sedimentary framework and evolution of upper permian - triassic in hand depression are discussed , and two sets of soure - reservior - roof rock associations are determined
论述了哈密坳陷上二叠统三叠系的沉积格局及其演化，确定出两套生储盖组合。 |
| 9. | We thus suspected that the collapsed roof rock from one of the two oldest yellowstone supereruptions must have melted to form the bulk of the magma that was ejected during the younger lava creek catastrophe and smaller eruptions since
我们因此猜测，较年轻的克里克熔岩凝灰岩以及之后的小型喷发，岩浆来源是黄石国家公园两个最古老的超级喷发之一，其崩陷的顶层岩熔成了后来喷发出的岩浆。 |
