... 珠状闪电 pearl lightning 主槽 major trough 主导风向 predominant wind direction ...
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... aggradation of stream channel 河槽淤高 channel of main stream 主槽; 主流水道 channel stream identifier 信息流标识符 ...
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The main channel flow discharge becomes weaken, the cross section mean velocity of stream reduces, the beach roughness coefficient increases and the river course gradient changes slow is the main reason which the flood propagation time lengthens.
渭河下游主槽过流能力减弱、断面平均流速减小、滩地糙率增大及河道比降变缓是渭河下游洪水传播时间延长的主要原因。
参考来源 - 渭河下游河道淤积萎缩对洪水演进规律的影响研究·2,447,543篇论文数据，部分数据来源于NoteExpress
嫩滩是主槽的组成部分；
窄深河槽具有很强的泄洪能力与输沙能力，是主槽整治追求的目标。
The narrow and deep channel possesses great flood discharge and silt carrying capacities, which is the target of the main channel training.
河道主槽两侧修建的生产堤影响滩槽泥沙横向交换，对河床演变带来很大影响。
The productive embankments on the watercourse bottomland disturb the water-sediment lateral exchange between bottomland and main flume, which have great influence on the riverbed evolution.
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