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为了对参数之间相关性不好的样本总体进行评判，作者对因子分析得出的主成分进行模糊综合评判．并且引入空白值和标定值的概念，对多层系评判结果的垂向叠加作了探索．给出了下扬子地区苏北溱潼凹陷十四个区带单层系和多层系综合评判结果，最大程度地利用了详查阶段拥有的生储盖运圈保等油气地质资料，为开发阶段做好选区综合评价工作．
In order to judge the sample with poor correlation between parameters, the author makes a fuzzy comprehensive evaluation of the principal components of factor analysis. The concepts of blank value and calibration value were introduced to explore the vertical stacking of the judgment results of multi-level system. The comprehensive evaluation results of single-layer and multi-layer system in fourteen zones of Qintong Depression in the Lower Yangtze region are given, which make the most of the geologic data of reservoirs such as reservoirs and captives in the detailed investigation stage. Phase of the constituency comprehensive evaluation.