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sphenopterids
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sphenopterids
Encyclopedia
理学
古植物学
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sphenopterids
楔羊齿类
晚古生代以小羽片基部为楔形或者柄状为形态特征划分的植物类群,部分为真蕨类植物,其他则为种子蕨类植物。
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secular variable
secular variation
Secunda Giedi
Secunda Hyadum
secure attachment
secure data provenance
secured claims in bankruptcy
secure docking device
secure electronic transactions protocol
secure electronic transactions protocol, SET protocol
secure gateway
secure hypertext transfer protocol
secure hypertext transfer protocol, S-HTTP
secure kernel
secure liquid encapsulation
secure multi party computation
secure multi-party computation
secure multipurpose internet mail extensions
secure multipurpose internet mail extensions, S/MIME
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