Calculating the increment economic benefits is the key to the national economic post-appraisal of the project.

定量计算它的增量经济效益是对项目进行经济效益后评价的关键。

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Water conservancy construction project post-evaluation includes course evaluation, economic evaluation, affection appraising, project goal assessment and constant appraisal.

水利建设项目后评价包括过程评价、经济评价、影响评价、项目目标和可持续性评价。

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