名词
中文翻译：折射仪
同义词：
['transmittance meter', 'refractometer']
例句：
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1. The scientist used a refractometer to measure the refractive index of the liquid.
科学家使用折射计测量液体的折射率。
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2. The refractometer was used to determine the density of the oil.
折射计被用来测定油的密度。
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3. The refractometer is used to measure the refractive index of different materials.
折射计用于测量不同材料的折射率。