“agnathans”的概念、定义、翻译、参考文献-科学参考

单词	agnathans
释义	agnathans Encyclopedia 理学无颌类释 agnathans无颌类没有颌的鱼类，在分类上属于脊索动物门（Chordata）脊椎动物亚门（Vertebrata）无颌超纲（Agnatha），与之对应的则是脊椎动物亚门的另一大类群——有颌类，即有颌超纲（Gnathostomata）。
随便看	polygon fractal polygon-inscribing constant polygon intersection polygonization polygon mapping polygon of seventeen sides polygonometry polygonous polygon over a monoid polygon slicing polygon tessellation polygon tiling polygon triangle picking polygon triangulation polygon vertex polygram polygrammaticalization polygraph polygraph counter-countermeasure polygraph countermeasure polygraph investigations at the Berkeley Police Department polygraph testing system polygraph wave form polygraph wave types polygynous family

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。