“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	Lie algebra commutator series Lie algebra lower central series Lie algebra of a Lie group Lie algebra of an algebraic group Lie algebra of an analytic group Lie algebra of derivations Lie algebra positive root Lie algebra radical Lie algebra rank Lie algebra representation Lie algebra root Lie algebra simple root Lie algebra weight Lie algebroid Lieb Lie bialgebra Liebig crater Liebmann Liebmann approximation method Liebmann theorem Lie bracket Liebugou Fengjing Mingshengqu Lie-Bäcklund transformation Liechtenstein Liechtensteiners

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