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stratigraphy n. 地层学,地层中的岩石组成 地层学,地层中的岩石组成 stratigraphy n 1: the branch of geology that studies the arrangement and succession of strata Stratigraphy \Stra*tig"ra*phy\, n. [Stratum -graphy.]
That branch of geology which treats of the arrangement and succession of strata. [1913 Webster]
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