I have encountered a problem: in order to get good guality 3D mesh from the section I have given, I have to merge two adjacent entities A and B, but the adjacent faces of these two entities are staggered and cannot be merged using Boolean.
Is there any way to solve the merging problem? I have tried deleting the adjacent faces of B and then being able to use the faces in the merge to select and merge, but it has brought new problems (B's faces have become free faces and turned red, and I don't know how to restore them to their normal form; B has merged with its adjacent entity C and cannot be separated from it)