Refractometer
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Definition
A gemological instrument that measures a polished gemstone's refractive index by determining the critical angle at which total internal reflection occurs between the stone and the instrument's reference glass.
Detailed Explanation
연마된 보석의 굴절률을 측정하기 위해 보석과 기기의 기준 유리 사이에서 전반사가 일어나는 임계각을 결정하는 보석학 기기입니다.