In addition to studying professional theories, college students also have practical classes. Generally, there will be training bases in schools as places for practical classes. Practice class needs a lot of professional equipment.

There are not enough classrooms and teachers.

The number of college students is tens of thousands, and it is still expanding in recent years. If classes are held in a fixed classroom, one or more classes in a classroom are idle when there are no classes, which is undoubtedly a waste of resources.