凿岩机 Traditional form: 鑿岩機 Pinyin (reading): záoyánjī Definitions: rock drill Characters: 凿 - chisel; to bore, to pierce 岩 - cliff; rocks; mountain 机 - desk; machine; moment, opportunity Traditional characters: 鑿 - chisel; to bore, to pierce 岩 - cliff; rocks; mountain 機 - desk; machine; moment, opportunity