风动凿岩机 pneumatic rock drill ; air hammer drill ; [矿业] air rock drill ; [矿业] air drifter
风动凿孔机 [机] air puncher
活塞式风动凿岩机 piston air drill
风动密缝凿 pneumatic caulker
风动支架钻凿机 air legmounted drill
风动凿岩 pneumatic drilling
气腿式风动凿岩机 Wind air leg rock drill ; Air-leg pneumatic rock drill
风动凿岩锤 pneumatic rock hammer
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