By using grey classification analysis method, chapter 5 classifies the recent several years' effectiveness of QingChuan shipping company's SMS respectively and give a quantitative evaluation.
第五章运用了灰色聚类分析，对晴川轮船公司近几年来安全管理体系的有效性分别进行了聚类，作出了一个定量的评估。
By using grey classification analysis method, chapter 5 classifies the recent several years' effectiveness of QingChuan shipping company's SMS respectively and give a quantitative evaluation.
第五章运用了灰色聚类分析，对晴川轮船公司近几年来安全管理体系的有效性分别进行了聚类，作出了一个定量的评估。
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