| 摘要 |
A supporting apparatus supports a movable element by a bearing. The apparatus has a moment reducing unit that exerts a force on a portion of the movable element, which is different from a portion supported by the bearing. The moment reducing unit reduces a moment that acts on the movable element when the portion of the movable element, which is supported by the bearing, changes as the movable element moves. This stabilizes the attitude of the movable element.
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