“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	surrogate endpoint surrogate fuel surrogate loss consistency surrogate model surrogate mother surrogate pattern surrogate programming surrogate reference material surrogates of chlorofluorocarbons surrogates of chlorofluorocarbons (SCFCS) surrogate succession surrosion Surrounded the Abdin Palace surrounder surround exposure surround film sound multichannel reproduction mode surrounding surrounding gillnet fishing surrounding manifold surrounding rock surrounding rock classification surrounding rockmass classification of underground engineering surrounding rock pressure surrounding rock pressure and contact stress between supports surrounding rock stability

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