alluviation

基本解释

About fifteen thousand years ago, the delta swelled and in time land was formed through alluviation.
15000年以前，古三角洲隆起，逐渐冲积成了陆地。
And becomes by alluviation of these 3 Jiangshui in successive years 3 rivers Campagna, also ripe humanness knowledge.
而由这三条江水连年冲积而成的三江平原,亦熟为人识。
Before 1000000000, here ever was the sea, current flow falls, a few degrees of alluviation, kept this land eventually.
千百万年前,这里曾是沧海,潮涨潮落,几度冲积,终于留下了这块土地。
Shijiazhuang reposes in the alluviation of sector of river of Hu a small bay in a river that has long history and bright culture on Campagna.
石家庄座落在具有悠久历史和灿烂文化的滹沱河扇形冲积平原上。
Bengladesh is famous for floods. Flood bring disast to them, at the same time, it can fetlilize the field . There are many rivers around Bengladesh . It formed by alluviation.
孟加拉国以洪水为名，洪水带来灾难的同时也给土壤带来了丰富的肥料。这个国家的河流特别多，它就是河流冲积而形成的一个国家。