axis of rotation spin axis
旋转轴的旋转轴
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The rotating pendulum is a typical underactuated system with a rotating shaft of the motor attached to the end which is free to spin about an axis parallel to the axis of rotation of the pendulum.
旋转摆属于典型的欠驱动系统，通过驱动杆的水平转动可使欠驱动杆由垂直下摆位置转到竖直向上位置。
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模块上移
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