The example shows that the design through the multipurpose optimization made the volume of planet gear mechanism and reel decrease substantially.

实例表明，通过多目标的优化设计，行星齿轮减速机构及卷筒体积得到大幅度减少。

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Aim at the problem, this paper establishes the mathematical model of multipurpose optimization to made hoisting mechanism to occupy minimum space and planet gear to use minimum material.

针对这一问题，建立了以起升机构占用空间最小和行星齿轮减速机构用材最少为目标的多目标最优化数学模型。

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A multiobjective parameter optimization model is developed for a multipurpose reservior and the result is obtained by using the graphical direct generation method and the optimal coordinate solution.

对一个综合利用水库建立了多目标参数优选模型，并用图解直接生成法及最佳协调解作了分析。

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