“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	central eruption Central Europe Central European Business School Case Center Central European Free Trade Agreement central European time central executive system Central Experimental and Proving Establishment central exponent central extension central extension field central extension of a group central extension of groups central extremal central factor central factorial central fiber central field central field approximation central-field approximation central field model central-field model central figure Central Film Service Central Film Studio Central Five and Seven Arts Academy

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