The alluvial plain is rich in sediment.

该冲积平原有丰富的泥沙。

The river alluvial layer is widely distributed on the surface.

河流冲积层在地表的分布很广。

Alluvial islands are a special type of continental islands.

冲积岛是大陆岛的一个特殊类型。

As a result of fluvial scouring and aggrading the riverbed, the alluvial layer is fluid-saturated porous medium.

由于河流冲刷和河床加积，沉积层多饱和多孔。

Alluvial soils usually grow the best crops.

淤积土壤通常能长出最好的庄稼。

Some alluvial deposits are a rich source of diamonds.

一些冲积物是钻石的丰富来源。

Mineral products has oil, natural gas, bittern, alluvial gold to wait.

矿产有石油、天然气、盐卤、沙金等。

There into the sea on the continental shelf of alluvial river delta formation.

在大陆架上有流入大海的江河冲积形成的三角洲。