瑷珲 àihuīàihūn Aihui Definitions Defs Origin Strokes Stroke Words Sentences Sents 瑷珲条约 àihúntiáoyuē Treaty of Aigun An 1858 unequal treaty forced on Qing China by Tsarist Russia, which ceded a vast territory north of the Heilongjiang River and established joint control over the area east of the Ussuri River.
