The main region division

• 主体功能区划

The main region division的用法和样例：

例句

1. The water environmental protection zones were partitioned according to the functions assigned to the sections of the main stream of Sanggan River in Shanxi Province.
   摘要依据水环境功能区划分原则及技术方法对山西桑干河干流地面水域的功能区进行了划分。