Fig. D: Moebius clock advances a single-sided paper loop with printed times.

图D：驱动印有时间刻度的单面纸带前进的莫必斯时钟。

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Fig. D: Moebius clock advances a single-sided paper loop with printed times.

图D：驱动印有时间刻度的单面纸带前进的莫必斯时钟。

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