多因子综合指数法计算定级指数后采用总分值频率直方图划分农用地级别，并实现定级结果图的自动输出。
Finally, cropland levels are divided according to frequency distribution of synthetic index values of assessment units and the map of results are obtained.
多因子综合指数法计算定级指数后采用总分值频率直方图划分农用地级别，并实现定级结果图的自动输出。
Finally, cropland levels are divided according to frequency distribution of synthetic index values of assessment units and the map of results are obtained.
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