“cephalochordate”的概念、定义、翻译、参考文献-科学参考

单词	cephalochordate
释义	cephalochordate Encyclopedia 理学头索动物释 cephalochordate 头索动物现存最原始的脊索动物，位于脊索动物系统树基部。头索动物无真正的头，习惯也称无头类，脊索纵贯全身，向前一直延伸到身体背神经管的前方，这在所有脊索动物是仅有的现象，故而被称为头索动物。 Biology cephalochordate头索动物
随便看	universal mill universal mobile telecommunications system universal model universal morphism universal motor universal multiple-octet coded character set universal multiple-octet coded character set, UCS Universal Natural History and Theory of the Heavens universal negative proposition Universal Negro Improvement Association and African Communities League universalness universal normal algorithm universal object universal optical measurement instruments universal pair universal parabolic constant universal PCR universal periodic orbit sequence Universal Pictures Co. universal polar stereographic projection universal polynomial Universal Postal Congress universal postal service Universal Postal Union universal predicate

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。