| 摘要 |
A spatial linkage including an inboard gimbal plate that provides a ground for the spatial linkage, an outboard gimbal plate, and three links that couple the outboard gimbal plate to the inboard gimbal plate. Each link has a longitudinal axis and two pivotal couplings disposed at opposite ends of the longitudinal axis. Each link is pivotally coupled to the outboard gimbal plate at a first end of the longitudinal axis and pivotally coupled to the inboard gimbal plate at a second end of the longitudinal axis opposite the first end. The pivotal couplings allow the outboard gimbal plate to move relative to the inboard gimbal plate and preventing relative rotation between the outboard gimbal plate and the inboard gimbal plate.
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