| 摘要 |
A rotary wheel system, including a rotatable frame with a plurality of removable, interchangeable media segments, has a hub assembly, a plurality o f spokes radially extending from the hub assembly, in between which each media segment is located. Each I-beam shaped spoke is formed of a primary spoke an d a secondary spoke, separated along the centre section. The hub assembly includ es specially designed brackets for detachably connecting the spokes to the hub assembly. A rim assembly includes a plurality of rim segments and special brackets for fastening each end of each rim segment to the spokes.
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