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underground pneumatic down-the-hole drilling rig
释义
underground pneumatic down-the-hole drilling rig
Encyclopedia
工学
〔地下穿孔设备〕
释
underground pneumatic down-the-hole drilling rig
地下气动潜孔采矿钻机
采用气动潜孔冲击器(气动潜孔锤),以冲击作用为主、回转作用为辅进行中深孔凿岩的地下采矿机械设备。
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更新时间:2025/3/16 4:03:46