1·It shares, with Canada, the second longest river system in North America and has over half the coastline of the United States.
它与加拿大共享北美第二长的河流系统，拥有美国一半以上的海岸线。
2·The river system of the Mississippi River and the Missouri River is the longest river system in North America at 3,902 miles.
密西西比河和密苏里河水系是北美最长的水系，全长3902英里。
3·Amazon River system and French Guiana.
分布亚马逊河系统和法属圭亚那。
4·The city has many rivers, belonging to the Yangtze River system.
它也属于长江水系，长年多雨。
5·The river system is one of the most important ecological system.
河流系统是自然界最重要的生态系统之一。
6·The river system where the alignment passes by is not developed.
线路经过地区的河流水系较不发达。
7·Gazetteer Asia: Peninsular India from Deccan rivers up to Krishna river system.
亚洲：来自德干河的印度半岛向上到克里希纳河河流域。
8·A comparison between the two images reveals flooding on nearly every river system.
两图片的对比可以清楚揭示出该区流域的洪水情况。
9·The water quality of the pearl river system in guangxi is better than that in guangdong.
珠江水系广西境内江段水质好于广东境内江段。
10·Channel deposits consisting of sand silt and clay fill the valleys cut by a river system.
河道沉积由砂，粉沙和粘土组成，充填于河流切割的河谷之中。