A · entertainment or sports venues built for year-round use: golf driving range, swimming pool, skating rink, tennis courts, blue arena, volleyball hall, circus venues; B · for fairs, exhibitions venues used; (requires a large space cyclical use of Expo Center, Exhibition Hall) C · provide for industrial, commercial use of storage or production plant;. (need super high large space industrial plants, storage workshop) D · develop temporary agricultural production and research facilities; (Ecological Agriculture simulated space research, botanical gardens, parks and large greenhouse) temporary facilities E · Easy to move and reorganization. (Large site command and conference center; F, hit people, supplies temporary gathering places.)