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如何辨别老花镜度数是否相同
更新时间: 2020-11-07 00:00:00  

依你的说法,应该是眼镜上面现在没有标签了,其实很简单,找一条直线,桌字的边缘棱角也可以。

然后把眼镜的架子与棱角平行拿在手里,垂直与棱角的方向移到,观察里面的图形与真是区别,2只镜片的移到度一样就是一样的。原理是三棱镜移心效应。当然去眼镜店仪器上验下也知道了。

关键词: 如何 辨别 老花镜 度数 是否 相同

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