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本文提出工程机械维修质量多层次、多算子模糊综合评估方法，并以挖掘机为例说明该评估模型建立方法；在此基础上，对某单位Ｒ２００现代液压挖掘机进行维修质量评估，其评估结果与实际较为相符。
This paper presents a multi-level and multi-operator fuzzy comprehensive evaluation method for the maintenance quality of construction machinery. The excavator is taken as an example to illustrate the method for establishing the evaluation model. On this basis, the maintenance quality assessment of a modern R200 hydraulic excavator is carried out, The result is more in line with the actual situation.