短語詞組短語rotary y rock drill 旋轉(zhuǎn)式鉆巖機(jī)rotary rock -drill 旋轉(zhuǎn)鉆石機(jī)internal -rotary pneumatic rock-drill 內(nèi)回轉(zhuǎn)氣動(dòng)鑿巖機(jī)electric rock rotary drill 巖石電鉆rock rotary drill 巖石鉆 返回 rotary rock drill