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自然生态系统：
natural ecosystems:
Last Update: 2016-12-04
Usage Frequency: 1
Quality:
f. 自然生态系统
f. natural ecosystems
Last Update: 2016-12-04
Usage Frequency: 1
Quality:
- 恢复（复原）自然生态系统；
- reconstruction (restoration) of natural ecosystems;
Last Update: 2016-12-04
Usage Frequency: 1
Quality:
水资源、农业、沿海地区、自然生态系统(森林)
water resources, agriculture, coastal zones, natural ecosystems (forests)
Last Update: 2016-12-04
Usage Frequency: 2
Quality:
生态系统
ecosystems
Last Update: 2016-12-04
Usage Frequency: 10
Quality:
