| 摘要 |
A vehicle for movement relative to a medium, the vehicle comprising a base, and a carriage mounted on the base for supporting a human operator, the carriage mounted for forward and rearward movement relative to the base upon being driven by bipedal movement of the operator, a thrust mechanism operable to develop vehicle thrust by transmitting a force to the medium upon bipedally driven rearward movement o f the carriage and a force mechanism operable to apply a force to the base upon bipedally driven forward movement of the carriage.
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