sediment

沉澱物、沉渣

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

酒瓶底部有一層沉澱物。

沉積物、沉積層地質

Rivers carry sediment from the mountains down to the coast.

河流把沉積物從山區帶到海岸。

沉澱、沉積專業

Fine particles sediment slowly in still water.

細小顆粒會在靜止的水中慢慢沉澱。