“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	British East India Company British Ecological Society British e-government British Empire and Commonwealth British Environment Agency British Film Institute British General Strike of 1926 British gold standard and its diffusion British government portal British gum British Higher Education Funding Council British historical school of Marxism British Hydromechanics Research Association British idealism British Imperial Order of 1899 British Imperial Order of Swaziland British Independent Labour Party British India/British Raj British Industrial Revolution British Interactive Multi-Media Association British Isles British Jews British Journal of Nutrition British Journal of Social Work British Journal of Sociology

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