alluvial deposit
冲积矿床；冲积砂矿；冲积物；冲积层
同义词
参考例子
1.Independent gold ore deposit mainly consists of alluvial and diluvial, slope wash sandstone and bibbley rock.
独立金矿床以冲洪积、坡残积砂金矿及砾岩型金矿为主；
2.Placer tin deposit in Xupu occurs in alluvial sediment of Quatemary SyStem and CaSSiterite chiefly concentrates at the bottom of Gravel layers.
溆浦砂锡矿床赋存在第四系冲积层中，锡石主要富集在底部砂砾石层。
3.But, for those who study the tongue as it should be studied, that is to say, as geologists study the earth, slang appears like a veritable alluvial deposit.
但是，对那些以应有的严肃态度——也就是说象地质学家研究地球那样——研究语言的人来说，黑话却真象一片真正的冲积土。
英文解释
n.
1.clay or silt or gravel carried by rushing streams and deposited where the stream slows down
网络释义
alluvial deposit
冲积砂矿; 冲积物; 冲积土层; 冲积层;
alluvial fan deposit
冲积扇层; 冲积扇沉积; 冲积扇层, 扇状冲积层;
alluvial ore deposit
冲积矿床, 冲积砂矿;