The sediment size changes sharply in two reaches of the middle and lower Yangtze River. Sediment type changes from gravel into sand in one zone, and another from sand into mud.

  • 长江中下游河床沉积物在两个河段出现了粒径的急剧变化和沉积物类型的转换,一个是从砾石转变为砂,另一个是从砂转变为泥。

  • 互联网摘选 2025-01-20 13:01:21

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