“月经先后无定期”的概念、定义、翻译、参考文献-科学参考

单词	月经先后无定期
释义	月经先后无定期 Encyclopedia 医学﹝妇科病证﹞释 irregular menstrual cycle月经先后无定期以月经周期提前或延后7天以上，连续出现3个周期以上为主要表现的病证。又称经水先后无定期、月经衍期、经乱等。
随便看	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 external Q external Q factor external quality external quantum efficiency external radiation protection external radio frequency electromagentic environmental and susceptibility test external rate of return external ray external realms external recruitment external reflection external regeneration system external releasing agent

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。