river bottom 河底 ; 江底 ; 河床的底部
river bottom sediment 河底沉积 ; 河底沉积物
The river bottom 在河底
River Bottom Protection 护底 ; 河底保护
river bottom control 河底控制
river bottom deposit 河底沉积
River Bottom Protection Structures 河床保护结构
river bottom contactor 河底接触器
The river bottom shelves here.
河底从这里呈缓坡倾斜。
When he was forced to turn sharply to avoid a floating tree branch, the elephant dropped the hat and it fell to the river bottom.
当大象被迫急转弯以避开一根漂浮的树枝时，帽子掉了下来，掉到了河底。
If it occurs in this river valley but not downstream, then the water is being held back in some way by a heaving river bottom.
如果洪水发生在河谷但不是下游，那么水在某种程度上是被起伏的河底阻挡住而涌回来。
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