“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	Fishery Engineering Research Institute fishery enhancement and releasing time fishery environment fishery environmental organic substance pollution fishery environmental quality assessment fishery environmental quality standards fishery environment monitoring fishery environment of inland waters fishery environment of saline-alkali regions fishery environment pollution fishery environment protection fishery environment restoration fishery equipment and engineering fishery facilities fishery finance fishery folk custom culture fishery freezing equipment fishery genetic diversity fishery governance measures fishery habitat diversity fishery in Africa fishery industry policy fishery information resources fishery information systems fishery instrument

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。