Prompt: There is a wall, and there is a rectangular stainless steel box in front of the wall. A pipe comes out of the wall and enters the box. The pipe passes through the equipment and then connects to the sewer manhole cover next to it. Created using realistic techniques, the composition is the main view. The ground material is cement floor, the manhole cover material is ordinary iron manhole cover, and the main body of the picture is a rectangular box, wall and pipe