river dredging for deposit reduction
river dredging for dikes reinforcing
Dredging the Huai River
river and lake dredging
Jinshajiang River River Basin
Ancient Yellow River-Yangtze River Delta
Bailong River and Tao River forest region
Diverting the Yangtze River to the Han River
drawing water from the Yangtze River into the Yellow River through the middie line
forceful merging of the Yellow River with the Huaihe River
headwater region of Yangtze River and Yellow River
Huaishahe River and Huaijiuhe River
Huang Shui River and Huang River Basin
Huanghe River Yellow River
Jian River-Chaobai River system
Jiaohe River-Laihe River marine canal
Jiaohe River-Laihe River Strait