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词汇
maintenance cost and benefit
释义
maintenance cost and benefit
基本
例句
成本效益分析
Basing protection levels on the costs and benefits of protection government decision on public investment in environment protection is analyzed.
摘要运用一个简单的成本效益分析模型，分析了政府进行环境治理项目投资的决策问题。
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更新时间：2026/11/12 10:41:38