The crankshaft, in conjunction with the connecting rod, converts the reciprocating motion of the piston to the rotary motion needed to drive the vehicle.
The crankshaft, in conjunction with the connecting rod, converts the reciprocating motion of the piston to the rotary motion needed to drive the vehicle.
曲轴，和连杆一起，把活塞的往复运动转化为驾驶车辆需要的旋转运动。