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吸油纸为什么会变透明
更新时间: 2020-11-23 00:00:00  

吸油纸一开始是一种多孔且表面凹凸不平的物质,所以看不清纸另一面的物体。但当油或水浸湿了纸以后,纸的表面变的光滑,光线可以顺利通过,就看到清纸的另一面了,所以就变透明了。

关键词: 油纸 为什么 透明

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