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120寸投影幕尺寸多大
更新时间: 2020-11-11 00:00:00  

1、一般120寸4:3幕布尺寸为2.5*1.85米,120寸16:9幕布尺寸为2.6*1.5米,具体多少,还要看幕布品牌,不同幕布品牌长和高尺寸会有点差别,比如JK119寸16:9幕布尺寸为2635×1480MM,美视120英寸幕布2654*1494MM。

2、120英寸指对角线长度;一英寸等于2.54厘米;对角线长度是120*2.54;设直角边每份为x厘米,根据勾股定理得:(16x)平方+(9x)平方=(120*2.54)平方,求出x约为16.6厘米;故长(宽)为16*16.6=266厘米;高约为9*16.6=149.4厘米。

关键词: 投影 尺寸

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