求翻译：利用口述历史研究方法对土家族口中承进行田野调查，通过深入访谈与史料分析对土家族口承文艺的发源、传递方式、分类、特性进行了全面记录与研究；并对土家族口承文艺内涵进行了阐释，就其保护与传承提出了自己的观念。是什么意思？

Use of oral history fieldwork on the the Tujia mouth bearing Oral art originated in Tujia, transmission, classification, characteristics, a comprehensive record of research, through in-depth interviews and historical analysis; and Tujia Oral Culture connotation The interpretation put forward their i

Take advantage of the oral history research methods for the family on field surveys, through in-depth interviews and historical analysis of the literature and art of the family is the sourcing, delivery mode, classification, features a comprehensive records and research; and the family is the litera

Using accounts orally the history research technique to receive to the Tujia national minority mouth in carries on the field investigation, through the thorough interview and the historical data analysis to the Tujia national minority horn mouthpiece literary arts origin, the transfer mode, the clas

Using oral history fieldwork in research methods on the Tujia people's mouths, through in-depth interviews and analysis of historical sources on oral literature of Tujia nationality of origin, passed a comprehensive record, classification, characteristics and research; and illustrated the oral liter

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