"econometric theories"
ECONETn.依可
ECOpref.表示“环境”;“生态”;“生态学的”
ecological productivity生态生产力
ecological green-land生态绿地
Ecolagical Canstruction生态建设
eco-efficient service生态型服务
eco - footprint model生态足迹模型
ecological natural view生态自然观
ecological courses view生态主义课程观
Eco-tourism viewpoint生态旅游视角
Econometric Time Series计量经济学时间数列
ecological relationship生态关系