短语词组短語boring g bar 鑽杆;鏜杆Right boring tool bar 右鏜刀杆boring bar box 鏜杆箱cylinder boring bar 汽缸鏜杆boring bar tool 鏜杆刀具slit nosed boring bar 槽耑鏜杆boring bar head 搪杆頭jumper boring bar 沖擊鑽孔器deformable boring bar 變形鏜杆 返回 boring bar