褪色计：用来计算油墨或其他物料在预定的控制环境下的耐光度的仪器。
Fadeometer: An instrument used for determing the lightfastness of inks and other material under predetermined controlled conditions.
褪色计：用来计算油墨或其他物料在预定的控制环境下的耐光度的仪器。
Fadeometer: An instrument used for determing the lightfastness of inks and other material under predetermined controlled conditions.
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