嫩草国产福利视频一区二区-嫩草国产露脸精品国产软件-嫩草研究院久久久精品-嫩草院一区二区乱码-嫩模一区二区三区-牛牛影视一区二区三区免费看

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.