在涉及污染与健康的环境费用效益分析中，社会必须权衡经济收入与生命价值。
Where pollution and health are involved in a Benefit-Cost Analysis, a tradeoff must be made between economic costs and the value of a life.
介绍了费用效益分析的定义、步骤以及其在项目评估中的应用，从而把人们对环境的关注纳入到项目的可行性研究中。
The definition and process and application of cost - benefit analysis on project evaluation are summarized, which puts the people's attention on environment into the feasible study of the projects.
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