短语词组短语splay knot 条状节splay walls 八字壁splay faulting 分杖断层作用alluvial splay 河滩堆积splay deposits 漫滩冲积泥沙splay footed 蹄外向的splay y 展开;斜孔sand splay 粗砂决口扇 返回 splay