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于1986年对我国常见的14种油品和1984年8月大连湾海面溢油进行气相色谱分析，用模糊数学方法建立ECCIM贴近度聚类分析的海面溢油鉴别模式提出油种鉴别的Euclid贴近度置信水平凡的模糊区概念。油种及其海面溢油的Euclid贴近度聚类分析动态聚类图表明，油种鉴别的置信水平人主要受风化和实验误差的影响，大庆原油、30＃重柴油、20＃重柴油、0＃轻柴油以及任丘原油各自分别同其它13种油可分类的置信水平λ的范围依次为：[0．8726，0．9953），[0．8726，0．9970），［0．8726，0．9857），[0．8807，0．9902）和[0．8726，0．9907）。
In 1986, 14 common oil products in our country and 8 August 1984 Dalian oil spill were analyzed by gas chromatography. The fuzzy mathematics method was used to establish the ECCIM close clustering analysis of the oil spill identification model. The Euclid identification of oil species was approached Confidence Level Normal blur concept. Clustering analysis of the Euclid proximity of oilseeds and their oil spills shows that the confidence level of oilseeds is mainly affected by weathering and experimental errors. Daqing crude oil, 30 # heavy diesel oil, 20 # heavy diesel oil, 0 # Light diesel oil and Renqiu crude oil, respectively, with the other 13 kinds of oil can be classified according to the confidence level λ range: [0.8726,0.9953], [0.8726,0.9970], [0.8726, 0.9857), [0.8807, 0.9902] and [0.8726, 0.9907].