请输入您要查询的字词:
单词
头索动物
释义
头索动物
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
fundamental function
fundamental function of financial system
fundamental geographic information database
fundamental geographic information of mine
fundamental geographic information system
fundamental geospatial dataset
fundamental gravity differential equation
fundamental group
fundamental group of T2 topological space
fundamental group of T2topological space
fundamental group of T_2 topological space
fundamental groupoid
fundamental gymnastics
fundamental harmonic
fundamental-harmonic pair
fundamental homology class
fundamental homomorphism theorem
fundamental hypothesis
fundamental ideal
fundamental identity
fundamental inequality
fundamental integral
fundamental interaction
fundamental invariant
fundamentalism
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。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2026/7/8 1:17:14