At the center is a dense cluster of ultra-sensitive vision cells.

中间密集着超灵敏视觉细胞。

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At the center is a dense cluster of ultra-sensitive vision cells. Outside this central area, the cells rapidly become more sparse.

在中心部分分布着密集的强敏感视觉细胞，而在中心部分以外的区域，光感细胞的分布明显稀疏了许多。

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At the center is a dense cluster of ultra-sensitive vision cells. Outside this central area, the cells rapidly become more sparse.

在中心部分分布着密集的强敏感视觉细胞，而在中心部分以外的区域，光感细胞的分布明显稀疏了许多。

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