单词star facet
un.: 星形翻光面网络: 星刻面;星形刻面比例;星面
星形翻光面
It is quite important for calculating precisely inclination of star facet, upper girdle and lower girdle facets during gem processing.
精确计算星刻面、上腰刻面和下腰刻面的倾角是圆明亮琢型宝石加工的重要问题。