| 1. | Rock drilling machines and pneumatic tools - terminology
凿岩机械与气动工具术语 |
| 2. | Model to evaluate anisotropy of rock drill - ability
岩石可钻性各向异性评价模型研究 |
| 3. | Evaluation on rock drill - ability by well logging data
利用测井资料评价岩石可钻性研究 |
| 4. | Terminology of rock drilling machines and pneumatic tools
凿岩机械与气动工具名词术语 |
| 5. | Rope thread extension steel bars for rock drilling
凿岩用波形螺纹连接钎杆 |
| 6. | Rock drilling equipment . hollow drill steels in bar form
凿岩钎杆用中空钢 |
| 7. | Rock drilling equipment - hollow drill steels in bar form
凿岩钎杆用中空钢 |
| 8. | Ore - used flameproof electrical rotary rock drills
矿用隔爆电动岩石钻 |
| 9. | Rock drilling machines and pneumatic tools - safety requirements
凿岩机械与气动工具安全要求 |
| 10. | The design of automatic testing system for pneumatic rock drill
气动凿岩机性能测试系统的研制 |
