“perimenstral bleeding from nose or mouth，retrograde menstruation”的概念、定义、翻译、参考文献-科学参考

单词	perimenstral bleeding from nose or mouth，retrograde menstruation
释义	perimenstral bleeding from nose or mouth，retrograde menstruation Encyclopedia 医学﹝妇科病证﹞释 perimenstral bleeding from nose or mouth，retrograde menstruation倒经以经行前后或正值经期，出现周期性吐血或衄血为特征的病证。常伴有经量减少，又称经行吐衄、逆经。
随便看	head end head end process head-end process head end treatment of spent fuel head-end treatment of spent fuel header header effect header file head erysipelas headframe head gap headgear headgear chamber headhunting company heading heading and positioning control heading angle heading control heading of an article Heading South head kidney headlamp head landing zone headless abscess headlight

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。