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在建立农业机械化发展水平评估指标体系的基础上，结合不确定性理论及灰色系统理论，提出了评估农业机械化发展水平的新方法——概率－灰色评估法。并用该方法对河南省农业机械化发展水平进行了评估分析。
Based on the establishment of evaluation index system of agricultural mechanization development level, combined with the uncertainty theory and gray system theory, a new method to evaluate the development of agricultural mechanization is put forward, that is, probability-gray method. This method is used to evaluate the level of agricultural mechanization in Henan Province.