| 摘要 |
A display system having a support member (7), a plurality of carriages (10) mounted on the support member (7) where the carriages (10) are mounted to be independently moveable around the support member (10); a plurality of display units (3, 4, 5, 6), each display unit (3, 4, 5, 6) posItioned on one of the carriages (10); and a plurality of motors (60), each motor (60) connected to one carriage (10) for moving that carriage (10) around the support (7) member, where the motors (60) are powered by alternating current. |
