ecocars生态汽车
ECOpref.表示“环境”;“生态”;“生态学的”
econome-mathematical methods经济数学方法
eco - environment protection生态保护
ecological conservation system生态学保护体系
ecological environment problem生态环境问题
Ecological supporting capacity生态承载力
ecological system of grassland草原生态系统
ecoenviroment bearing capacity生态环境承载力
ecological forest construction生态林建设