“棘鱼类”的概念、定义、翻译、参考文献-科学参考

单词	棘鱼类
释义	棘鱼类 Encyclopedia 理学有颌类释 acanthodians棘鱼类一类已灭绝的有颌脊椎动物，形似鲨鱼，具有硬骨鱼和软骨鱼的双重特征。
随便看	homotopy group functor homotopy group of a triad homotopy group of CW complexes homotopy group of spheres homotopy identity homotopy invariance homotopy invariant homotopy invariant functor homotopy inverse homotopy inverse mapping homotopy length homotopy lifting homotopy lifting property homotopy lifting theorem homotopy method homotopy monomorphism homotopy of chain mappings homotopy of chain maps homotopy of mappings homotopy of maps homotopy operation homotopy operator homotopy pair homotopy parameter homotopy path

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。