West river North river, river network horizon, the boat ran high, lion dancers Huan.

西江北江，河网纵横，龙舟激昂，狮舞人欢。

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Water quality model for the river network has been studied in this paper.

本文研究了河网水质数学模型。

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Water quality model for the river network has been studied in this paper.

本文研究了河网水质数学模型。

youdao