Design of fm wireless remote controlling device on hydraulic rock drilling jumbo 液压凿岩钻车调频无线电遥控装置设计
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Technology comparison between tri - arm rock drilling jumbo and hand rock breaker used in drilling and blasting construction of luofeng tunnel 萝峰隧道三臂凿岩台车与手持式凿岩机钻爆法掘进施工技术比较