graded bedding

[地质] 粒级层

常用释义

词性释义

[地质] 粒级层;序粒层;粒级层理
例句
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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;