What are these power-consuming sand sculptures? What are those numbers?

This is the background of some applications of the system. If it is not provided by the mobile phone, it is what software you have installed. Just open the settings to find power and performance (different mobile phones display differently), find power saving optimization (different mobile phones display differently), find power consumption ranking (different mobile phones display differently), and restrict or uninstall unnecessary applications in the background. As the picture shows, mine is Xiaomi mobile phone.