A number of alluvial fans along the base of a mountain may coalesce to form a continuous alluvial slope.

沿着山脚的一些冲积扇可能联合起来形成连续的冲积坡。

youdao

A number of alluvial fans along the base of a mountain may coalesce to form a continuous alluvial slope.

沿着山脚的一些冲积扇可能联合起来形成连续的冲积坡。

youdao