| 释义 |
〔culet〕The small flat face at the bottom of a gem cut as a brilliant.宝石座：以多角形琢磨法切割而成的宝石的底部小平面〔pavilion〕The lower surface of a brilliant-cut gem, slanting outward from the culet to the girdle.（宝石等的）底面：多角形宝石的下部表面，从底面向外倾斜〔polygon〕A closed plane figure bounded by three or more line segments.多边形；多角形：由三条或更多的线段围成的一个封闭的平面图形 |