第五章农田生态系统水环境损害成本的计量。
Chapter Five: Measurement about the water environmental damage cost from field ecosystem.
单个点源污染的环境损害成本估算是本文的核心。
Calculating the environmental damage cost of a single point source is the core of this paper.
正如航空和其他交通工具造成的环境损害必须受到更严格的审查一样，旅游业的社会成本也必须得到解决。
Just as the environmental harm caused by aviation and other transport must come under far greater scrutiny, the social cost of tourism must also be confronted.
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