1·The forest is fed by the Amazon river, the largest river in the world by volume, which also has the biggest drainage basin on the planet.
亚马逊河蜿蜒纵横，作为世界上流量最大的河流，造就了地球上最大的流域。
2·A drainage basin is the area where these tributaries collect rainwater. A river with all its tributaries is called a river system.
流域是支流蓄水的区域。一条河流连同它的全部支流一起，叫做水系。
3·Focus on the water resources and water environment information inquiry, analysis and appraisal of drainage basin level.
主要侧重于流域层次的水资源与水环境信息查询、分析和评价。
4·The research on evolvement law of drainage basin sediment yielding plays an important role in design of a project, planning and control of soil erosion.
流域产沙量演变规律的研究对于工程设计、水土流失规划与治理具有重要作用。
5·E value was 0.624. The drainage basin shape might be elliptical.
值是0.624，说明流域盆地形状大概是椭圆形；