river system

• n. 河道网；河系；河网

river system的用法和样例：

例句

用作名词 (n.)

1. During these journeys he discovered the connection between the Amazon and Orinoco river systems and surmised that altitude sickness was caused by lack of oxygen.
   旅程中他发现亚马逊河系与奥利诺科河系是相通的，并推测高山病起因于缺氧。
2. Geographically, Jiangmen Municipality is located in an alluvial plain in river delta, with low hills dotted crisscrossed rivers and fertile soil.
   江门市属河流三角洲冲积平原，低山丘陵错落其间，河网纵横，土地肥沃。