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功能: 防尘 防病菌 防甲醛 防二手烟
图案在黑暗环境下的亮度与吸收的光源强度和时间长短有关
Function: Dust-formaldehyde anti-bacteria anti-secondhand smoke
The brightness of the pattern is depend on the Absorption of the light source intensity and the length of the time.
