n.沉淀；下沉；陷没
The supply of sediment is insufficient to offset the rate of subsidence. 沉积物的补给不足以抵偿沉降的速率。
The railway line was closed because of subsidence. 这条铁路因土地下陷而停止运营。
Mining subsidence affects ecological environment of minefield. 采煤塌陷,严重破坏了矿区的生态环境。
Many basins were formed by the subsidence of the earth's crust. 许多盆地都是因地壳陷落而形成的。
