A shopping mall has a second negative floor, which is about 4,000 square meters. Considering the relationship between the negative first floor, an expert can tell me what to do on the second negative

A shopping mall has a second negative floor, which is about 4,000 square meters. Considering the relationship between the negative first floor, an expert can tell me what to do on the second negative floor?

1. Play a part of the basic role;

2. Make full use of space;

3. Use it as equipment space, into the power distribution room and generator room , secondary water supply pool, fire water pump room, central air conditioning main engine room; parking room; fan room.

In short, if you secretly do no illegal activities underground, you can stay within the scope of the law