高效、低耗冲击式凿岩钎具--工业炸药发明后困扰世界采掘工业的百年难题

高效、低耗冲击式凿岩钎具--工业炸药发明后困扰世界采掘工业的百年难题的英文翻译

基本释义

• High Drilling Rate and Long Service Life Percussive Rock-Drilling Tools: A Hundred-Year Puzzle for World Excavation Industry after Inventions of Industrial Explosives