湍流在粘结性水底沉积物上流动时冲刷出的一种抹刀形的凹坑。

A spatulate depression scoured by a turbulent current of water flowing over cohesive bottom sediment.

youdao

湍流在粘结性水底沉积物上流动时冲刷出的一种抹刀形的凹坑。

A spatulate depression scoured by a turbulent current of water flowing over cohesive bottom sediment.

youdao