Of these, only the fovea has a high enough density of cones, the type of photoreceptor cell in your eye that can perceive small details, to make out text on a page.

其中，只有中央窝锥细胞密度足够高，锥细胞是一种觉感受器细胞，可以感知小细节，从而辨认出一页纸上。

In the center, your fovea clearly identifies 3 to 4 letters around where your eyes stop.

在中央，中央凹清楚地识别出眼睛停下来地方周围 3 4 个母。

The fovea is the area in the center of your vision where the photoreceptors are most densely packed, and where your vision is the sharpest.

中央凹是觉中心区域，那里光感受器密度最高，觉最清晰。

Since the fovea is pretty small, your eyes read text by making quick jerky movements called saccades.

由于中央窝很小，眼睛就会通过快速跳动动作来阅读本，这个动作被称为扫。

The fovea is the area in the center of your vision  where the photoreceptors are most densely packed, and where your vision is the sharpest.

中心凹是您力中心区域, 感光细胞最密集, 您力最敏锐。

Raptors have an especially deep fovea— a depression in the back of their eye that fits more photoreceptors.

猛禽有一个特别深中央凹— —它们眼睛后部凹陷处适合更多光感受器。

It's approximately 5 millimeters in diameter and houses another even more specialized region known as the fovea.

它直径约为5毫米，其中包含另一个更为特殊区域，称为中央凹。

They probably didn't have any conception of peripheral vision or the fovea or, I mean, basically anything.

他们可能根本没有关于周边觉或黄斑概念，我说是基本上任何概念都没有。

And you have only one fovea.

而中央凹只有一个。

And the fovea is the very center of the retina, about a quarter of a millimeter wide.

中央凹是网膜中心， 大约四分之一毫米宽。

In the center, your fovea clearly  identifies 3 to 4 letters around where your eyes stop.

在中心, 中央凹清楚地识别出34个母, 眼睛停在那里。