riverlyadj.河的；河流的；河边的rivern.河；江；河流；水道river-ice hydraulics河冰水力学river basin management流域管理riverine warfare craft内河军用艇river borne substances河源物质river-aquifer system河流-含水层系统river-irrigated land渠浇地river deposition coast三角洲海岸river in mountain area山区河道river-born substance河源物质river-type flat area河滩型平坦区域