...s: urban wetland; soil erosion; soil nutrient; value estimate [gap=16073]关键词：城市湿地；土壤侵蚀；土壤养分；价值估算 ...
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The meaning and value assessment are the hotspot and difficulty of research on ecosystem services currently.
生态系统服务功能的内涵与价值估算研究是当前生态系统服务功能研究的重点和难点。
参考来源 - 杭州西溪湿地生态系统服务功能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
在每个迭代结束时，将所完成的每个故事的业务价值估算汇总起来。
At the end of each iteration, add up the value estimates for the stories you completed in that iteration.
旅游价值估算为游客的旅行费用支出、消费者剩余、时间价值和其他花费之和。
The tourism value is considered as the sum of the tourists' travel cost, consumer surplus, time value and other expenses.
价值评估是企业并购决策的核心内容，对目标企业的价值估算的准确与否将直接关系着并购活动的成败。
The value appraisal is the core of mergers and acquisitions of enterprises, and the estimation of the enterprises' value will directly affect mergers and acquisitions.
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