culet proportion底尖比
culet facet底尖刻面
Culet Size钻底尺寸;尖底大小;底尖大小;尖底巨细
chipped culet破损的底尖
rough culet粗糙底尖
abraded culet磨损的底尖
open culet大的底尖
acentric culet偏心的底尖
Culet t底尖;亭尖
N(名词) the flat face at the bottom of a gem 指多面体宝石的底面 [jewellery]