色永久第一色_精品日韩人妻一区二区_国产同性恋精品无码视频_亚洲av日韩av偷拍偷拍_亚洲嫩草AV永久无码_性爱视频一区二区免费看_91啪啪精品_黄色视频A片区_国产91啪视频好日子_一区二区三区大香蕉_亚洲无线观码_人操欧美视频_诱人熟女亚洲_久久久久,黄色一级片_av嫩草

The force on the crankshaft is transmitted to the piston. Firstly, the gasoline pump draws oil from the fuel tank to the atomizer, which produces a force after atomization and combustion, which drives the movement of the piston. The piston then transmits the force to the crankshaft through the piston rod, which rotates and transmits the force to the gearbox. This way, the car leaves, and the piston rod plays a role in transmitting the force throughout the entire process.