名词
中文翻译：相对光度计
同义词：
['relative meter', 'relative spectrophotometer']
例句：
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1.The relative photometer was used to measure the intensity of light in different environments.
使用相对光度计测量不同环境下光线的强度。
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2. The relative photometer was used to analyze the spectral composition of the sample.
使用相对光度计分析样品的光谱组成。
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3. The relative photometer was used to determine the concentration of pollutants in the water sample.
使用相对光度计测定水样中污染物的浓度。