“原始体腔”的概念、定义、翻译、参考文献-科学参考

单词	原始体腔
释义	原始体腔 Encyclopedia 医学人体胚胎学释 primitive body cavity原始体腔来自中胚层，由相互连通的3个部分组成的结构。包括1个围心腔、1对体腔管和1个初级腹膜腔。
随便看	positive proposition positive psychology positive psychotherapy positive punishment positive quadratic differential positive quadratic form positive quantity positive ray function positive real axis positive real control positive real function positive real number positive real part positive real system positive recurrent point positive recurrent state positive reinforcement positive relation positive result positive root positive root system positive rotation positive school of criminology positive selection positive self-adjoint operator

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。