“primitive streak”的概念、定义、翻译、参考文献-科学参考

单词	primitive streak
释义	primitive streak Encyclopedia 医学胚盘释 primitive streak原条约在受精后的第15天，上胚层细胞增生并向二胚层胚盘尾端中线迁移，在中轴线上聚集而成的一纵行细胞柱。
随便看	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 universal principal bundle universal problem universal product universal product code universal production line universal profinite group universal projective cone universal property universal proposition universal quantification elimination universal quantification introduction universal quantifier

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。