参照经济生态学和循环经济的国内外实践，探讨了由减量化、再使用和资源化子系统组成的循环经济的系统结构。
A study is made on the structures of circular economy including subsystems of reduction, reuse and recycle referring to the domestic and foreign practices and economic ecology.
河岸带研究以生态学、水文学和地貌学为基础，涉及多种学科和技术，而我国河岸带的理论与实践研究均较为薄弱。
Based on ecology, geomorphology and hydrology, riparian study involves a wide range of disciplines and technologies, studies on basic theories and methods of riparian in China are very poor.
这些互补性的素质是通过对优秀学业的追求，通过在音乐、戏剧、精美艺术品、生态学和户外教育等方面的实践来培养的。
These complementary elements are acquired through the pursuit of excellence in academic work and experience in music, drama, the fine arts, ecology and outdoor education.
应用推荐