“barrier methods”的概念、定义、翻译、参考文献-科学参考

单词	barrier methods
释义	barrier methods Encyclopedia 医学外用避孕释 barrier methods外用避孕用物理方法（机械阻挡）不让精子到达子宫腔内，或用化学制剂在阴道内灭活精子，也可两者结合，以此阻挡精、卵相遇而避孕的方法。
随便看	flood control of tailings pond flood control of the Yellow River in ancient China flood control operation flood control planning flood control region flood control road Flood control system of Mississippi river flood control thought in ancient Chinese flood control with reservoir flood control works flood damage flood delta flood detention area flood detention basin flood disaster Flood Disaster Assessment flood disaster in China flood disaster map flood disaster monitoring in civil engineering flood discharge atomization flood diversion and detention area management flood diversion project flood diversion sluice flood division area flooded community

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。