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基于模糊集理论和灰色关联分析，建立了柴油机涡轮增压系统的模糊关联度评选模型，该模型仿照人们评选柴油机涡轮增压系统性能优劣的过程，并考虑到评选过程中的模糊性，在单个评估指标的模糊评估基础上，利用灰色关联分析，综合分析与评估柴油机涡轮增压系统性能的优劣。示例说明应用这种评选新方法的具体步骤和需注意的问题，计算表明新方法是可行的。
Based on fuzzy set theory and gray relational analysis, a fuzzy correlation degree selection model of diesel turbocharger system is established. According to people’s selection of the performance of diesel turbocharged system, taking into account the fuzziness in the selection process, Based on the fuzzy evaluation of single evaluation index, the gray correlation analysis is used to comprehensively analyze and evaluate the performance of diesel turbocharger system. The examples illustrate the specific steps and issues to be aware of when applying this new method of evaluation. Calculations show that the new method is feasible.