“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	crime scene investigation of arson case crime scene investigation of murder crime scene investigation of theft case crime scene investigation organization and command crime scene mapping crime scene note-taking crime scene photography crime scene protection crime scene reconstruction crime scene reconstruction techniques crime scene searching crime scene videography crime scene visit crimes committed by floating population crimes of abducting child crimes of disrupting market order crimes of disrupting public order crimes of disrupting the order of administration of companies and enterprises crimes of disrupting the order of financial administration crimes of disrupting the order of the socialist market economy crimes of embezzlement and bribery crimes of endangering environment crimes of endangering public security crimes of financial fraud crimes of impairing judicial administration

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