| 摘要 |
A retractable transportation system for transporting loads on a vehicle or trailer with a flatbed design that would otherwise be too wide or too tall to fit on the vehicle or trailer. The retractable transportation system includes a plurality of support members attachable to a trailer bed, a plurality of first arms and second arms pivotally attached to opposing ends of the support members, a first platform attached to the first arms, a second platform attached to the second arms, and a plurality of actuators connected to the support member and the arms for elevating/lowering the platforms.
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