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首现点
释义
首现点
Encyclopedia
理学
生物地层带
释
first appearance datum
首现点
某一化石分类单元在地层中出现的第一个层位(薄层)。是生物面的一种。又称首现基准面。
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distribution with negative skewness
distribution with positive skewness
distribution zonality of renewable resources
distribution多元超几何分布
distributive
distributive algebra
distributive binary operation
distributive composition law
distributive element
distributive ideal
distributive identity
distributive inequality
distributive lattice
distributive law
distributively generated near-ring
distributive map of exploration engineering in ore district
distributive module
distributive multiplication
distributive operation
distributive operator
distributive property
distributive quasigroup
distributive reading
distributive ringoid
distributive shock
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