短語詞組短語electric rock drill [礦業(yè)]電動鉆巖機;[礦業(yè)]巖石電鉆;[礦業(yè)]電動鑿巖機;電動鉆巖機electric rock rotary drill 巖石電鉆electric rock drill bit 電動鉆巖機鉆頭electric c rock drill 電動鉆巖機electric railway rock drill 電動鉆巖機electric railway rock drill bit 電動鉆巖機鉆頭 返回 rock electric drill