“odontopterids”的概念、定义、翻译、参考文献-科学参考

单词	odontopterids
释义	odontopterids Encyclopedia 理学古植物学释 odontopterids齿羊齿类一类常见于晚石炭世至早二叠世的种子蕨类植物，以小羽片基部下延，全缘或具裂齿，扇状脉，叶轴二歧分叉为主要形态特征。
随便看	symbol of an equation symbol of an integral operator symbol of an operation symbol of an operator symbol of a pseudodifferential operator symbol of a unary operation symbol of a vector field Symbol of Chinese cultural heritage symbol of conjunction symbol of disjunction symbol of equivalence symbol of happy encounters symbol of joint negation symbol of logical product symbol of logical sum symbol of proportion symbol of ratio symbology symbols and abbreviations on chart symbol sequence symbols for electrical diagrams symbol structure symbol synchronization symbol table symbol theory

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