silt

The lake was almost solid with silt and vegetation.

这个湖几乎填满了泥沙和植被。

The Aswan Dam, for example, stopped the Nile flooding but deprived Egypt of the fertile silt that floods left—all in return for a giant reservoir of disease which is now so full of silt that it barely generates electricity.

例如，阿斯旺大坝使尼罗河不再洪水泛滥，但是它也夺去了埃及以前所享有的洪水留下的肥沃淤泥——这些换来的就是这么个疾病滋生的水库，现在这个水库积满了淤泥，几乎不能发电了。

The sediments consist of silts and marls.

沉淀物中是粉沙尘和石灰质粘土。

The lagoon is heavily silted.

泻湖已经严重淤塞了。

Sand has silted up the river delta.

泥沙把这条河的三角洲淤塞了。