What are the sporadic projects of building engineering and decoration engineering?

The sporadic projects of building engineering and decoration engineering are as follows:

Civil engineering, municipal engineering, decoration, antiques and other projects have sporadic projects.

Julian recruited experts to add:

The first point: sporadic decoration works, urinals, squatting toilets, water tanks, side decoration of steps, a small amount of sporadic ground decoration within 0.5m2, etc.

Or, as they just answered, just some small things on the ground and walls.