| 1. | Mine support ; roof bars single props ; lengths
矿井支护.顶梁单体支柱.长度 |
| 2. | Application of type built - up roof beam in face of steep coal seam
型组合顶梁在急倾斜采煤工作面的应用 |
| 3. | Adaptability evaluation of combined suspension support with whole roof beam
整体顶梁组合悬移支架适应性评价 |
| 4. | Development of anti - skip device for roof bar of 11 mine h - bar trapezium - shaped support
矿用工字钢梯形棚顶梁防滑装置的研制 |
| 5. | Hydraulic extension bar
液压伸长顶梁 |
| 6. | Spring - steel roof member
弹性钢顶梁 |
| 7. | Crown bar foot
炉撑顶梁角座 |
| 8. | H beam cap
工字钢顶梁 |
| 9. | A horizontal or transverse beam , especially a structural member resting on two supports
横梁，顶梁水平的或横向的梁，尤指架在两个支柱上的建筑构件 |
| 10. | Influence of the hydraulic support ' s beam length to the caving performance in the fully mechanized top - coal caving face
综采放顶煤液压支架顶梁长度对顶煤可放性的影响 |
