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第二十五计充分利用室内受光面的反射性能,能有效提高光的利用率,如白色墙面的反射系数可达70～80%,同样可以节电。
Twenty-fifth meter make full use of indoor reflective surface reflective properties, can effectively improve the utilization of light, such as the white wall reflection coefficient of up to 70 ~ 80%, the same energy-saving.