名词
中文翻译：光电黑度计
同义词：
['photoelectric meter', 'photoelectric blackness meter']
例句：
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1. The photoelectricnigrometer was used to measure the brightness of the sun.
光电黑度计被用来测量太阳的亮度。
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2.The photoelectric nigrometer was used to measure the color temperature of the light source.
光电黑度计被用来测量光源的颜色温度。
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3. The photoelectric nigrometer was used to measure the luminous intensity of the light source.
光电黑度计被用来测量光源的发光强度。