探讨了河流生态系统健康的概念和评价方法。
The concept and evaluation method of river ecosystem health were discussed.
本文较系统地探讨了对药用植物生态系统进行设计的原理、方法和重要意义。
In this paper, principle, content, significance of medical plant ecosystem design are studied systematically.
这种方法已被描述为一种“图案生态系统”。
This approach has been described as a kind of "pictorial eco-system".
这种方法已被描述为一种“图案生态系统”。
This approach has been described as a kind of "pictorial eco-system".
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