ecotourn.到生态环境保存完好的自然地区的旅行
ECOpref.表示“环境”;“生态”;“生态学的”
ecological model of crowding挤逼生态模型
ecological beneficial forest公益林
Ecological impact assessment生态影响评价
eco-environmental problems生态环境问题
ecological compartment model生态分室模型
ecological operation culture生态伦理型经营文化
Eco-environmental resource生态环境资源
ecological impact evaluation生态影响评价