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4英寸屏幕有多大
更新时间: 2020-09-20 00:00:00  

屏幕的尺寸是指屏幕对角线的长度,即屏幕对角线为4英寸。

1英寸等于2、54厘米,故4英寸等于10、16厘米。

一般手机屏幕的长宽的比例是16比9,运用勾股定理,即两直角边的平方和等于斜边的平方,可得出屏幕长约8、85厘米,宽约4、98厘米。

关键词: 英寸 屏幕

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