“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	external-magnetic wet permanent drum magnetic separator external mold external motivation of learning external negation external network external occipital crest external occipital protuberance external occultor external occultor coronagraph external oriented economy external parameter external part-time of administrative subject external part-time of market subject external path length external photoelectric effect imaging device external plasticization external point external point of view external pollutant loading control external potential external pressure confinement external procedure external product external propaganda external public

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。