关中-天水经济区
Guangzhong-Tianshui economic region
宏观经济水资源模型
macro-economics water resources model
技术经济水平
Technical and economical level
经济水分利用率
Economic water use efficiency
社会经济水循环
Socio-economic Water Cycle
用水经济效率
economic efficiency of water utilization
节能经济
economy of energy efficiency
节能经济分析
Energy saving economic analysis
经济-能源-环境系统
Economy-Energy-Environment system