css参考像素(reference pixel)就是应用了这个原理，w3c是这样定义参考像素的 The reference pixel is the visual angle of one pixel on a device with a pixe...
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包含一个参考像素点(reference pixel) 的概念。
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black reference pixel 黑参考像元
reference pixel
参考像素
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Finally, a few more specs are detailed in the hope of enticing tech-minded shoppers, with reference to a Snapdragon S4 processor, a 1, 800mAh battery and a 356 pixel density that tallies with what we've already seen of the 4.2-inch 720p screen.
ENGADGET: Leaked BB 10 sales training manual reveals a few more specs, promises 70K apps at launch
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