| 1 | The migration of this period has some characteristics, which infected the social development of the region. | |
| 2 | In the fourth section, it is about the argumentation of ship type of the non-stop artery freighter in Yuan River based on Chaos optimization method. | |
| 3 | Now, the main transport modes in Yuan River are mobile freighter, cargo barge team. | |
| 4 | The ancient documents and relics discovered in Hanshou Town show the importance of Changde and Hanshou in the Kingdom Chu and the Family Qu. | |
| 5 | Around the Revolution of 1911, a relatively concentrated talent group appeared in the area alongside the Yuan River and the Li River. |
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