短語詞組短語fine -grained sand 細(xì)顆粒泥沙highly fine -grained sand 特細(xì)砂very silty fine -grained sand 非常粉細(xì)砂;非常土工聚合物精細(xì)沙;很粉質(zhì)細(xì)粒砂 返回 fine grained sand