This paper introduces the design scheme of precipitator retrofit project of thermal power plant, discusses the methods and bases of rational optimization before and during retrofit.
介绍了火力发电厂除尘器改造工程的设计方案，论述了工程改造前及改造中如何做到合理优化的方法及依据。
Using the optimization theory a mathematical model which maximizes the square of the distance between the project to be evaluated and the worst scheme is established, and the exact solution is given.
该方法以优化理论为依据、以待评方案距最劣方案的加权距离的平方的极大值为优化目标，建立了新的数学模型，并给出了精确解。
Using optimization theory a mathematics model which optimizes the distance square of project being evaluated and ideal optimization scheme is established.
该方法以优化理论为依据，以待评方案距理想最优方案的加权距离的平方为优化目标，建立了新的数学模型，并给出了精确解。
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