The water is infiltrating the gravel bed.
水正渗透进碎石底层。
There was a tin cup on a forked stick that was stuck in the gravel by the spring and Nick Adams looked at it and at the water rising and then flowing clear in its gravel bed beside the road.
泉水边的沙砾中埋着一根树杈，树杈上顶着一个锡杯。尼克·亚当斯看着杯子，看着不断涌出的泉水又完全流入了路边的砂砾层。
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。
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