| 单词 | vitelline circulation |
| 释义 | vitelline circulation (once / 3939771 pages) n WORD FAMILY vitelline circulation USAGE EXAMPLESThese vessels naturally atrophy with the degeneration of the umbilical vesicle, and the vitelline circulation is replaced by a second, that of the allantois. Haeckel, Ernst Heinrich Philipp August, The Evolution of Man — Volume 1(2010) Thus, the secondary, allantoic circulation gradually takes the place of the original vitelline circulation. Haeckel, Ernst Heinrich Philipp August, The Evolution of Man — Volume 1(2010) n circulation of blood between the embryo and the yolk sac Hyper circulation movement through a circuit; especially the movement of blood through the heart and blood vessels |
| 随便看 |
英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。