girdle structure

• 环带结构

girdle structure的用法和样例：

例句

1. The beresite from the Shuangshanzi gold mine contains a number of coarse-grained pyrite crystals with regular zonal structure.
   胶东乳山金矿双山子矿区黄铁绢英岩中的粗粒黄铁矿发育规则环带结构。