方法：采用文献分析法，对论文发表的刊物、时间、作者所在地和单位、论文的主题和类别进行分析。
Methods:The publication and time of publishing articles, places and units of author, subject and classification of articles were analysised in using the method of article analysis.
方法：采用文献分析法，对论文发表的刊物、时间、作者所在地和单位、论文的主题和类别进行分析。
Methods:The publication and time of publishing articles, places and units of author, subject and classification of articles were analysised in using the method of article analysis.
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