工作经历 ：交通部广州海运管理局。
Work Experience: Guangzhou Sea-Transport Administration Bureau, Ministry of Communications.
宋元时代是中国古代对外海运管理的一个重要阶段。
The period of the Song and Yuan Dynasties was an important stage of ocean going traffic management in ancient China.
宋元时代是中国古代对外海运管理的一个重要阶段。
The period of the Song and Yuan Dynasties was an important stage of ocean going traffic management in ancient China.
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