如果快门速度较慢，则快门打开时，您或您的拍摄对象很可能会移动，从而导致照片出现运动模糊。

With slow shutter speed, it's more likely that you or your subject is going to move while the shutter is open, causing motion blur in your photo.

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此外，齿轮也会根据与行星运动的匹配和日食预测而移动。

Additionally, the gears also moved to match the motions of the planet and predicted eclipses.

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她发现这对她的工作相当有帮助，这段经历让她了解了人类身体的运动，人们是如何移动、如何静立的，还有他们的姿势又是怎么样的。

She really found that this helped her work—that it gave her an understanding of body movements and actions, how humans move, and stand still, what their postures were like, too.

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