The environmental impact synthetic assessment based on entropy weight and construction scheme optimum selection problems of hydroelectric stations were approached.
采用基于熵权理论的方法综合评价环境影响，应用于水电站建设方案的优选。
Ultimately, selection of the optimum filters depends on flow rate, particle removal efficiency of the filter, filtration scheme (single vs. multi-stage filtration), and filter service life.
归根结底，最佳过滤器的选择决定了流速、过滤器的粒子去除效率、过滤方案(单步与多步过滤)和过滤器的使用寿命。
The environment impact synthetic assessment and construction scheme optimum selection problem of hydroelectric plant on the basis of catastrophe theory is approached.
基于突变理论，对水电站环境影响综合评价及建设方案优选问题进行了探讨。
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