然而，分辨能力还与大气状况以及观察者的视觉敏锐度有关。

However, resolving power is often compromised by atmospheric conditions and the visual acuity of the observer.

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单色视觉能力在陆地生物中非常罕见，因为分辨颜色的能力是陆地生物生存的一项工具。

Monochromatic vision is very rare among land species, because color vision is a tool for survival in terrestrial habitats.

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这个重达100公斤的机器人还可以分辨8种不同的气味，识别声音的来源方向，并能通过其视觉能力识别人的面孔。

The 100-kilogram (220-pound) robot can also distinguish eight different kinds of smells, can tell which direction a voice is coming from and USES powers of sight to follow a human face.

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