graded bedding

[地质] 粒级层
常用释义
[地质] 粒级层;序粒层;粒级层理

例句

1·Depositional beddings such as graded bedding, massive bedding, parallel bedding, cross-bedding and wave bedding, are well developed;

粒序层理、块状层理、平行层理、交错层理、波状层理十分发育;