relative refraction index

例句：

1. 1. Themeasurement of the relative refraction index is crucial for determining the optical properties of materials.
   测量相对折射率指数对于确定材料光学性质至关重要。
2. 2. In optics, the relative refraction index determines how light bends when it passes through a medium with different refractive indices.
   在光学中，相对折射率指数决定了光线穿过具有不同折射率的介质时发生弯曲的程度。
3. 3. The relative refraction index can be used to calculate the effective refractive index of amaterial, which is important for designing lenses and other optical components.
   相对折射率指数可以用来计算材料的有效折射指数，这对于设计透镜和其他光学组件非常重要。