区代码 meaning in English

region code

The management information code of public security accouterments - part 6 : code of climate zone
公安被装管理信息代码.第6部分:气候区代码
Classification and codes of fishery information . unit 2 : codes for fishing vessel management . part 4 : codes for navigation areas of fishing vessel
渔业信息分类与代码.第2单元：渔业船舶管理代码.第4部分：渔业船舶航区代码