You should be talking about the joint prevention and control of teachers' morality and style, right? The meaning is as follows:

Teachers' morality and style: Teachers' morality is a kind of professional ethics and the most basic moral quality of teachers. "Teachers' style" is the fashion of teachers' profession, and teachers' morality and style are the soul of educators.

Joint prevention and control means joint prevention and control, which is suitable for schools, communities, hospitals, troops and other crowded places to build a complete public security organization system.