文件名称:mobile-phone--PPI
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对于当前的智能手机市场，手机的屏幕越做越大，从屏占比的计算公式可以看出，屏幕越大，则屏占比越大.PI是pixels per inch的缩写简称,表示的是每英寸显示屏所拥有的像素(pixel)数目-For the current smart phone market, mobile phone screen is bigger and bigger, the formula for calculating the proportion of the screen can be seen, the larger screen, screen accounted for than the.PI is abbreviation of pixels per inch referred to, the representation is every inch of display pixel number
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求屏占比.e