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气动凿岩机
tech.	air drill; compressed-air drill; pneumatic dril (hammer); pneumatic rock drill
气动凿岩机以压缩空气为动力的凿岩机。用于露天矿剥离、台阶采矿、地下矿掘进、采矿和锚杆车钻凿浅孔和深孔，也可用于隧道、水工等工程中钻孔
expl.	pneumatic rock drill

气动 凿 岩机: 9 phrases in 4 subjects

Explosives and Explosive Ordnance Disposal	2
General	1
Oil / petroleum	1
Technology	5