求翻译：利用口述历史研究方法对土家族口承文艺进行田野调查，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？

Oral History Oral Culture of the anthropology, fieldwork, through in-depth interviews and historical data analysis the Tujia Oral art of origin, transmission, classification, characteristics of a comprehensive records and research; and Tujia Oral Culture connotation The interpretation put forward th

using oral history research methods of the family culture and arts for the Port field surveys, and 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

Using accounts orally the history research technique to carry on the field investigation to the Tujia national minority horn mouthpiece literary arts, through the thorough interview and the historical data analysis to the Tujia national minority horn mouthpiece literary arts origin, the transfer mod

Using oral history research method conducted field research on Tujia oral literature and art 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

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