Then further applying Sequence-number Summation Theory and Mode Theory, to check up the appraisal precision difference between appraisal results based on PPCA method and exiting methods.

最后进一步运用序号总和理论和众数理论，检验了基于PPCA的评价结果与现有方法评价结果之间的精度差异。

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Then further applying Sequence-number Summation Theory and Mode Theory, to check up the appraisal precision difference between appraisal results based on PPCA method and exiting methods.

最后进一步运用序号总和理论和众数理论，检验了基于PPCA的评价结果与现有方法评价结果之间的精度差异。

youdao