“沉积”造句

海洋微生物腐烂后沉积形成磷酸盐。
The phosphate was deposited by the decay of marine microorganisms.

每年河水泛滥时都会在田野上沉积一层淤泥.
During the annual floods the river deposits its silt on the fields.

河口沉积了淤泥.
The river deposited silt at its mouth.

• #沉积