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Which major tributary enters the Amur River from China?

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The Sungari (Songhua) River is the major tributary that enters the Amur River from China. It is the largest of the Amur's tributaries and joins the main river near Leninskoye, Siberia.12

Additionally, the Ussuri (Wusuli) River flows northward along the border between China and Siberia before joining the Amur at Khabarovsk.1