The device could be used to tell the different phases of the moon and much more.

这个装置可以用来分辨月球的不同阶段，甚至还有更多用途。

youdao

The many gears not only moved in a way that could indicate the phases of the Moon.

这些齿轮的转动并不仅仅能显示出月相。

youdao

He believes that as far back as 30,000 B.C., hunters may have used a system of notation, engraved on bone and stone, to mark phases of the Moon.

他认为，远在公元前30,000年以前，猎人可能会用一套刻在骨头和石头上的符号系统来标记月相。

youdao

The phases of the moon occur due to cycles among the moon, the earth and the sun.

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Still, although it is widely believed that the phases of the moon affect behaviour, psychologists have yet convincingly to prove it.

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Mr Duncan starts with a Stone Age astronomer who observed the phases of the moon, and marked them by carving notches on an eagle's bone.

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