凿岩机械 meaning in English

rock drilling machinery

Rock drilling machines and pneumatic tools - terminology
凿岩机械与气动工具术语
Terminology of rock drilling machines and pneumatic tools
凿岩机械与气动工具名词术语
Rock drilling machines and pneumatic tools - safety requirements
凿岩机械与气动工具安全要求
Safety requirements for rock drilling machines and pneumatic tools
凿岩机械与气动工具安全要求
Rock drilling machines and pneumatic tools - limited value of noise
凿岩机械与气动工具噪声限值

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