hammer drill〔名词〕风钻,冲击式钻机,凿岩机详细»
hammer drill〔名词〕风钻,冲击式钻机,凿岩机详细»
hammer drill〔名词〕风钻,冲击式钻机详细»
风钻air drill;compressed-air drill详细»
风钻air drifted drill;air drill hammer;air rock drill;compressed air drill;compressedair drill;percussion borer;percussive air machine;pneumatic drill详细»
风钻air drill air rig compressed-air drill pneumatic drill详细»