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生态价值
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生态价值
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ecological value
生态价值
自然生态系统所提供的产品、服务和环境支持,对于人类社会生存发展的效用。
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opening-door schooling
opening of a play
opening of a wedge
opening of five treaty ports for foreign trade
opening of Hilbert subspaces
opening of the Party affairs
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opening song
opening upper antecedent and closing lower consequent
open injective mapping
open injury of larynx
open innovation
open integration formula
open interval
Open interview
open kernel
Open Knowledge International
open leveling line
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