compound ecological system 复合生态系统
compound ecological environment 复合生态环境
The world is a compound ecological system, with each main factor mutually contacting and interacting to maintain the harmony of world.
世界是一个复合的生态系统，各要素之间相互联系，相互作用，维持着整个世界的和谐。
The study introduce the useful models of compound ecological agriculture, the crucial techniques and synthetic benefit of goat rear livestock in pens.
本研究从生态农业角度，介绍适用的复合生态农业模式一山羊圈养关键技术及其综合效益。
Man, society and nature compose a compound ecological system, and the solution of ecological crisis is closely related to that of social problems.
人、社会、自然是一个复合的生态系统，生态危机的解决从根本上说与社会问题的解决紧密相连。
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