The river channel change, the bed load and bed material armoring, and the water level lowering after the operation of the Gezhouba project are analyzed based on the topographic and hydrologic data.
根据实测地形和水文泥沙资料，分析了葛洲坝枢纽运用后宜昌河段的河床冲淤变化、推移质和床沙的粗化以及枯水位的变化。
The water surface level, velocity field and sediment concentration field of gravel sand bed and sand bed reach on Jianjiang river were refined simulated.
细致地模拟了荆江卵石夹沙河床及沙质河床浅滩河段的水面线、流速场、含沙量浓度场及河床变形。
An engineer collects water level information on the partially dried-up river bed of the Yangtze river in Chongqing municipality, March 3, 2010.
2010年3月3日，重庆直辖市，一位工程师在部分干涸的长江河床上收集水位信息。
The perched stream is the river whose bed is apparently higher than the land side ground of the river wall and whose water level is higher than both side grounds all the year round.
悬河是指河床明显高于河流堤防背河侧地面的河，其水位常年高于两岸地面。
The perched stream is the river whose bed is apparently higher than the land side ground of the river wall and whose water level is higher than both side grounds all the year round.
悬河是指河床明显高于河流堤防背河侧地面的河，其水位常年高于两岸地面。
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