These were the bases of benefit evaluation.
为效益评估奠定了基础。
Cost analysis is the base of benefit evaluation.
成本分析是效益评价的基础。
The research of forest benefit evaluation is a hotspot and difficulty at present.
森林效益评价是目前林业研究的热点，也是难点问题。
Socioeconomic benefit evaluation is the main precondition and foundation in railway project planning and decision.
社会经济效益评价是铁路干线路网规划及建设项目决策的重要前提和依据。
If direct assessment in difficult, Benefit Transfer Method (BTM) is always used in evaluation process.
当直接评估存在困难时，成果参照法被经常采用。
If direct assessment in difficult, Benefit Transfer Method (BTM) is always used in evaluation process.
当直接评估存在困难时，成果参照法被经常采用。
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