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Based on research of Tuda in Ningxia area, the paper mainly collects and arranges some related historical records.
本文以宁夏地区土达之研究为切入点，重点搜集、整理了有关这方面的史料。
youdao
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Based on research of Tuda in Ningxia area, the paper mainly collects and arranges some related historical records.
本文以宁夏地区土达之研究为切入点，重点搜集、整理了有关这方面的史料。
youdao