Detailedly introduces definition classification and character of interfacial polycondensation and influential factors of polycondensate molecular weight.

并着重介绍了界面缩聚的定义、分类、特点以及影响缩聚物分子量的因素。

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This paper analyzed the aim and characteristic of model establish, expounded time series analytic definition, classification, feature and application domain.

文章分析了模型建立的目的和特征，阐述了时间序列分析的定义、分类、特征和应用领域。

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This paper introduces the definition, classification and sources of the measurement uncertainty, as well as the methods and steps of the evaluation of measurement uncertainty.

文章对测量不确定度的定义，分类及来源进行了阐述，并且讲述了测量不确定度的评定方法和步骤。

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The definition was changed in 1997 by the American Diabetes Association and WHO Expert Committee on the Diagnosis and Classification of Diabetes Mellitus.

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