Noun:
-
a fan-shaped deposit where a fast flowing stream flattens out
- These channels are most common near the apex of the alluvial fan body.
这些河道最常见于近冲积扇体的顶端。
- The landform on which ancient human activity relic located was interfluvial floodplain on Yongding River Alluvial Fan.
古人类活动遗址所处地貌部位为古永定河冲积扇的河间冲积平原。
