alluvial soils

常见例句

Because the region around New Orleans is composed of alluvial soil, there is no paving material close at hand.
新奧爾良一帶多爲沖積土，因而附近沒有可用的鋪路石材。
Yet the soft alluvial sediment of Tokyo's low-lying areas, it is now understood, is vulnerable to liquefaction, in which violent movement turns the soil to quicksand.
人們現在意識到了，東京的一些地勢低的地方，松軟的沖積土很容易受到液化作用的影響，強烈的運動會使土壤成爲流沙。