| 摘要 |
A toroidal ram actuator comprising a part toroidal shaped cylinder mounted to a first member and a part toroidal piston reciprocally movable within the cylinder, a free end of the piston being mounted to a second member, wherein the first and second members are pivotally attached along an axis and the relative movement between the cylinder and piston produces rotary motion of the first or second member about the axis.
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