2·The crankshaft, regarded as the "backbone" of the engine, serves to change the reciprocating motion of the piston into rotary motion and handles the entire power output.
4·Camshaft from the crankshaft through the timing belt or gear or chain drive.
凸轮轴由曲轴通过齿形带或齿轮或链条驱动。
5·The flywheel marks and indentation are used for setting the valve and the ignition systems relative to prescribed position of the crankshaft.
飞轮标记与凹口可以用来确定阀门与点火装置系统的位置，其要根据曲轴的规定位置来确定。
1·The wings are driven by a crankshaft that is connected to a gearbox.
机翼由连接着齿轮箱的机轴驱动。
2·The front end of the speed reduction crankshaft (1) and the tail end of the main shaft (3) are made by adopting the polygon structure and are same as the inner structures of the grooves (5) and (6).
1·Newly developed three ring gear reducer is comprised of synchronous belt, big and small pulleys, crankshaft, drive ring plate, output shaft, external gear and case.