合并小区域准则
small region merging rules
区域分割合并
region splitting and merging
区域分裂合并
district depart and merge
Regional Merge and Split
闭合区域提取
Closed regions extraction
跨地区合并高校
cross-area-merged universities
跨区域合作
cross-regional cooperation
区域合作
district cooperation
region cooperation
regional cooperation
regional cooperation mechanism
district collaboration
tourism
areas cooperation