alluvion什么意思
1. 冲积层：alluviation 冲积 | alluvion 冲积层 | alluvium 冲积层
2. 沙洲：alluvial 冲积的 | alluvion 沙洲 | alluvium 冲积层
3. 涨滩;冲积层冲刷;拍岸浪：alluviation 冲积 | alluvion 涨滩;冲积层冲刷;拍岸浪 | alluvious 冲积的
4. 击岸波：alluvion 波浪冲击;海岸冲积地 | alluvion 击岸波 | alluvion 击岸波泛滥
noun
1. alluvion
1. clay or silt or gravel carried by rushing streams and deposited where the stream slows down
Synonym: alluvial sediment alluvial deposit alluvium
2. the rising of a body of water and its overflowing onto normally dry land
e.g. plains fertilized by annual inundations
Synonym: flood inundation deluge
3. gradual formation of new land, by recession of the sea or deposit of sediment