“pteridophytes（fossil）”的概念、定义、翻译、参考文献-科学参考

单词	pteridophytes（fossil）
释义	pteridophytes（fossil） Encyclopedia 理学古植物学释 pteridophytes（fossil）真蕨类（化石）具多样化的大型羽状复叶、孢子囊单个或成群着生于叶下表面的一类植物化石。
随便看	product notation product object product of a family of objects product of algebras product of cardinal numbers product of categories product of coal tar processing product of commutators product of correspondences product of cycles product of differences product of distributions product of elements product of extensions product of factors product of fiber bundles product of forms product of generalized functions product of graphs product of groups product of ideals product of inertia product of intervals product of knots product of languages

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。