Natural ecological
英
美
- 天然生态
双语例句
- Forest ecologists have been more concerned than agronomists with the inner mechanisms of natural and artificial ecosystems.
森林生态学家比农学家更关心天然生态系统和人工生态系统的内部机制。 - Accumulation of toxic substances in the biosphere is causing serious changes in the structure and function of natural ecosystems.
生物圈内有毒物质的积累，造成了天然生态系统的结构与功能的严重变化。
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