sediment

沉淀物、沉渣

There was a layer of sediment at the bottom of the wine bottle.

酒瓶底部有一层沉淀物。

沉积物、沉积层地质

Rivers carry sediment from the mountains down to the coast.

河流把沉积物从山区带到海岸。

沉淀、沉积专业

Fine particles sediment slowly in still water.

细小颗粒会在静止的水中慢慢沉淀。