What are the two raised lines on the front of the car called?

[SimonDella]

In fact, these two lines are the 'ribs' of the panel, called panel reinforcement ribs. As the name suggests, they are used to increase the strength of the engine hood steel plate. Without these two 'ribs,' pressing on the steel plate might cause it to deform under pressure. With these reinforcement ribs, the steel plate is less likely to deform when pressed. Essentially, they serve as an anti-pressure device. Passenger car engine hoods typically have two raised lines with the following functions: 1. Even force distribution: They help maintain uniform force distribution across the hood panel after bending, keeping the hood shape intact. 2. Enhanced aesthetics: They fulfill visual design requirements, making the entire car body more aesthetically pleasing. 3. Driving assistance: They assist drivers in judging and controlling the distance and position of the road edges while driving (primarily because during driving school training, these raised lines are used as reference points for distance and orientation).