稀土长余辉
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Then came fluorescent paints that glowed in the dark by releasing light energy stored while the surrounding light was bright.
后来开发出荧光涂料,其特性是在明亮环境时,吸收并储存光能,在黑暗环境,释放能量而发光。(注:有的荧光材料还因温差而吸收能量)。
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