左: the left side; the left旋: whirl螺纹: screw thread; flight; helica ...左旋螺纹螺母: left-hand nut左旋螺纹丝锥: left-hand thread tap左旋螺纹手控丝锥: left-hand thread manual tap左旋螺: left-hand threaded spindle左旋螺杆: left handed worm; left-handed screw左旋螺母: left-hand threaded nut; left-handed nut左旋螺丝: left handed screw左旋螺旋桨: left hand propeller; left handed screw; left-hand airscrew; left-handed propeller左旋螺旋线: left-handed twist左旋螺旋轴: left-handed screw axis右旋螺纹: right hand threads; right handed thread; right-hand screw thread; right-hand thread; right-handed thread右旋螺纹的: right threaded指旋螺纹: thumb bolt止旋螺纹盖: roll on cap左旋螺杆左旋螺钉左旋螺旋桨: left-handed screw右旋螺纹连接: right-hand joint右旋螺纹心轴: right hand threaded spindle右旋螺纹缧帽: right-hand threaded wheel nut左旋螺旋伞齿轮: left hand spiral bevel gear左旋方形螺纹: left-hand square thread螺旋螺纹膨胀器: helical screw expander气动旋螺纹猫头: air i ing cathead; air spinning cathead
