短語詞組短語vibration drilling mechanism 振動鉆削機(jī)理descriptors vibration drilling 振動鉆削axial vibration drilling 軸向振動鉆削vibration drilling machine 振動鉆床hole vibration drilling 小孔振動鉆削vibration drilling theory 振動鉆削理論vibration and impact drilling 振動沖擊鉆進(jìn)peripheral vibration drilling machine 周向振動鉆床 返回 vibration drilling