Essentially, it explains 720x480 using non-square pixels and 640x480 using square pixels.

从本质上说，使用非方形像素解析720x480，使用方形像素解析640x480。

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Apple recommends that clickable targets be at least 44 pixels square for best usability.

Apple建议可单击的目标至少为44像素的正方形以获得最佳可用性。

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They've built the largest computer display ever made. Measuring 130 square feet and made up of 20 million pixels.

他们制造了世界上最大的计算机显示器，它足有130平方英尺那么大，由两千万像素组成。

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The greater number of pixels per square inch means a substantially higher screen quality.

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But just as a photograph has more detail if there are more pixels per square of image, the data about what's underground should be more detailed.

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The quality of pictures is measured in pixels microscopic points of color per square inch.

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