作者用聚类分析法划分浅海水团，目的在于克服大洋水团分析法进行分析所遇到的一些困难，它在根据不同海区特点确定临界值与检验值时有较大的灵活性。

The cluster analysis method to determine the water-masses in the shallow water area can overcome some difficulties which are met in using analysis method of the oceanic water-masses.

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通过变性水团的分析，作者认为，在该海区水团的变性中，热力因素起着主要作用。

Through the analysis of modified water-masses, we believe that the thermodynamic factors play a major part in the modifieaion of water-masses in this area.

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本文利用NOAA卫星图像处理结果与同期水文观测资料，对东海表层水团的分布和转移特征作了初步分析。

The features of distribution and transformation of the East China Sea surface water mass are analyzed by using NOAA satellite images and simultaneous hydrographic data.

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