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Tamsui River - Wikipedia
Sui dynasty - Wikipedia
Si River - Wikipedia
Sui Dynasty - World History Encyclopedia
Scheme of sampling sites classification in the Suihe River
Tracing sulfate sources and transformations of surface water using ...
Physical and chemical characteristics of sediment properties of …
Grand Canal | China, History, Length, & Facts | Britannica
Spatial variations in and environmental significance of nitrogen …
Quantitative identification of nitrate and sulfate sources of a ...
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