pred系统综合评价 regional system of mountain area

区域pred系统 regional fred system

城市PRED系统 The city PRED system

湖区PRED系统 lake region's PRED System

绿洲PRED系统 Oasis PRED system

区域PRED系统 regional PRED system

流域PRED系统 PRED system in river valley

区域PRED系统论 regional PRED system theory