It can make fine visual distinctions because it is blessed with one million cones per square millimeter in its retina.

它的视网膜上每平方毫米有一百万个视锥细胞，所以它能分辨出很细微的视觉差别。

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There might be a couple hundred of these color sacks per square millimeter of the octopus' skin, and depending on the species, they can come in as many as five different colors.

章鱼每平方毫米的皮肤上可能有几百个这样的色袋，根据章鱼品种的不同，色袋可以有多达五种不同的颜色。

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In fact, one square millimeter of cortex has more than 100,000 neurons.

事实上，一平方毫米的大脑皮层上有10万多个神经元。

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By contrast, the A Series has a 228 square millimeter die, which is about three times larger than the others.

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The C and E Series (as well as the G Series for embedded applications like digital signage, set-top boxes, and game consoles and the Z Series, a 6 watt version aimed at passively cooled, sealed applications like tablets) are based on the same 75 square millimeter Brazos die.

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Each of Zebra's 2-foot-by-3-foot holographic tiles contains 500, 000 separate hogels, and each hogel, 1 millimeter square, offers a slightly different perspective of the same image from the next hogel.

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