划分区分矩阵
partition discernibility matrx
冰区分布图
Maps of Categorizing Icing Zones
覆冰区划
area mapping of ice-coating
按地区划分的选举
geographically based election
按地区划分的选区
district-based constituency
保护区划分
protection zone compartmentalization
delineating of protection areas
protection areas delineation
保护区划分方法
protection zone delineation method
地质遗迹园区划分
division of geological heritage garden