rock drill meaning in English
凿岩机；开石钻。
Examples
- Rock drilling machines and pneumatic tools - terminology
凿岩机械与气动工具术语 - Model to evaluate anisotropy of rock drill - ability
岩石可钻性各向异性评价模型研究 - Evaluation on rock drill - ability by well logging data
利用测井资料评价岩石可钻性研究 - Terminology of rock drilling machines and pneumatic tools
凿岩机械与气动工具名词术语 - Rope thread extension steel bars for rock drilling
凿岩用波形螺纹连接钎杆