There are at least nine physiographic cycles in the middle reaches of the Yellow River during the Late Cenozoic Era.

在晚新生代黄河中游至少存在九个地文期旋回。

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There are at least nine physiographic cycles in the middle reaches of the Yellow River during the Late Cenozoic Era.

在晚新生代黄河中游至少存在九个地文期旋回。

youdao