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primary standard of total luminous flux
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primary standard of total luminous flux
Encyclopedia
工学
光度计量
释
primary standard of total luminous flux
总光通量基准
复现总光通量单位流明(lm)量值的计量器具。是总光通量量值的最高依据以及总光通量计量器具校准测试的最高标准。
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