Channels generally contain coarser sediment than do the adjacent flood plains.
河床沉积物一般比邻近的泛滥平原沉积物粗些。
来源:互联网摘选Most of the soil in the river bed has washed down over the years from the mountains.
河床的大部分泥土都是多年来从山上冲刷下来的.
来源:《简明英汉词典》Bed material samplers, as first developed , may be divided into three types.
最初的河床质取样器有三种类型.
来源:词典精选例句River banks often also have clay about one meter or less under the surface.
河床下一米或不到一米的地方也出产黏土.
来源:互联网摘选Use a trowel to collect about 1 kg of sediment from the bottom of the stream.
利用一个小铲,收集大约1000克的河床物质样本.
来源:网络文摘精选Besides, a stability criterion for different river regimes has been suggested.
此外, 还专门对河床的综合稳定性指标开展了研究.
来源:互联网摘选
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