Three-dimensional diagram illustrating a river meander with a point bar being formed on one bank and erosion occurring on the other bank .

对某河曲进行说明的三维示意图，河的一岸正在形成曲流沙坝，另一岸正在受到浸蚀。

Channel and point-bar sands may be clean and well-sorted.

沙坝砂可以是干净的和分选良好的。

We have established a physical model for the meander point bar.

建立了曲流点坝物理模型,模拟地下曲流点坝储层进行驱替实验.