在项目环境影响评价中，社会经济评价一直是个难点。
Social economic assessment is always of difficult point in EIA.
对油气产能建设性项目进行经济评价时，往往涉及到多个经济评价指标。
The evaluation of a construction project of oil and gas often involves various indices.
建设项目或技术改造项目的环境影响经济评价至今仍是项目评估中的难点之一。
Economic evaluation in environmental impact on construction project or technology upgrading project remains difficult.
建设项目或技术改造项目的环境影响经济评价至今仍是项目评估中的难点之一。
Economic evaluation in environmental impact on construction project or technology upgrading project remains difficult.
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