Celestial poles are situated directly over the earth's geographical poles.

天极直接位于地球的地理极上面。

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The sphere is mounted by its poles (corresponding to the celestial poles) on a metal axis, and can rotate around it.

整个铜球可以绕一根金属轴转动，转动一周代表一个昼夜。

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Then, as the sky darkened, the stars became visible, the Earth’s spin making them trace their own circular paths about the north and south celestial poles.

随后，天色渐黑，星空依稀可见，地球的自转使得恒星在南天极和北天极沿着个子的轨道划下绚丽光环。

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Then, as the sky darkened, the stars became visible, the Earth’s spin making them trace their own circular paths about the north and south celestial poles.

随后，天色渐黑，星空依稀可见，地球的自转使得恒星在南天极和北天极沿着个子的轨道划下绚丽光环。

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