absolute index of refraction

例句：

1. 1.The scientists determined the absolute index of refraction for the new material.
   科学家们确定了新材料的绝对折射率。
2. 2. The researcher found that the absoluteindex of refraction iscrucial in determining the optical properties ofa material.
   研究者发现，绝对折射率在确定材料光学性质中至关重要。
3. 3. The engineercalculated the absolute index of refractionfor the lens design to ensure optimal performance.
   工程师计算了透镜设计的绝对折射率，以确保最佳性能。