马斯河默兹河的一部分，向西流经荷兰南郊与莱茵河相汇而形成一片冲积三角洲 A section of the Meuse River flowing westward through the southern Netherlands to a joint delta with the Rhine River.
冲积层河床、洪水淹没的平原或三角洲中的流水淤积所产生的沉积层 Sediment deposited by flowing water, as in a riverbed, flood plain, or delta.
尼罗河三角洲土地肥沃。 There are fertile fields in the Nile Delta.
