- regional restoration technique
- Regional Sales Team Structure
- regional science
- regional seismic travel time table
- Regional social development
- regional soils
- regional specialization
- regional specialization indicators
- regional spillover
- regional stability of mine
- regional structural differences indicators
- regional structure of higher education
- regional study
- regional style
- regional substation
- regional succession
- regional synergetic theory，Theory of regional cooperation
- Regional system of petroleum industry in Suez Cairo and Alexandria
- regional technology system of agricultural adaptation
- regional test of grass varieties
- regional test of variety
- regional trade agreements
- regional trade agreement，RTA
- regional traffic signal system control
- regional unbalanced growth