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本文应用主成分分析法对海州湾１９个测站的九项污染指标进行了研究，把整个海湾的污染分成了六个类型，指出了各类中应优先控制的污染因子及污染源，同时排除了对本海湾污染贡献较小的三项指标。
In this paper, nine pollution indicators of 19 stations in Haizhou Bay were studied by using principal component analysis. The pollution in the whole bay was divided into six types. The pollution factors and pollution sources that should be controlled preferentially in all kinds were pointed out. Three indicators that contributed less to the pollution in this gulf