名词
中文翻译：反射常数
同义词：
['refraction constant', 'refraction index', 'refractive index']
例句：
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1. The scientistused a laser to measure the reflection constant of the material.
科学家使用激光测量了材料的反射常数。
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2. The engineer calculated the refraction constant for the new lens design.
工程师计算了新透镜设计的折射常数。
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3. The physicist discovered that the refractive index of water is different from that of air.
物理学家发现水的折射指数与空气不同。