Currently, the research on the military geography of Guan-nei Dao is acomparatively weak "position" in the field of the academic research.
唐代关内道军事地理，是当前学术研究中相对薄弱的一块“阵地”。
Currently, the research on the military geography of Guan-nei Dao is acomparatively weak "position" in the field of the academic research.
唐代关内道军事地理，是当前学术研究中相对薄弱的一块“阵地”。
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