The river deposited silt at its mouth.

河口沉积了淤泥。

《新英汉大辞典》

Silt removal facilities, channels and manholes should be maintained and the deposited silt and grit should be removed regularly.

淤泥清除设施、渠道及沙井应进行保养，而沉淀的淤泥和砂砾应定期清除。

youdao

The hue is caused by the silt that is finely ground away from the valley walls by the glacier and deposited in the lake.

这种色调是由淤泥造成的，淤泥被冰川分成很多远离谷壁的细碎的小块，沉积在湖中。

youdao

Back an ice age or more sea levels were much lower than they are now and that silt has been deposited right across the area, sometimes above current coastlines, sometimes below them, close inshore and well offshore too.

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