“中原鸟”的概念、定义、翻译、参考文献-科学参考

单词	中原鸟
释义	中原鸟 Encyclopedia 理学鸟纲（化石）释 None中原鸟一种发现于中国早始新世的大型鸟类。
随便看	homotopy category homotopy chain homotopy characteristic homotopy class homotopy classification homotopy coherence homotopy coinverse homotopy-commutative homotopy-commutative diagram homotopy-commutative mapping homotopy constant homotopy continuation method homotopy covering property homotopy cylinder homotopy dimension homotopy epimorphism homotopy equivalence homotopy-equivalent homotopy-equivalent manifold homotopy-equivalent space homotopy exact sequence homotopy excision homotopy excision homomorphism homotopy excision theorem homotopy extension

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。