“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	fast electronics fast electron preheating fast emulsion fasten charge fastener fastener scaffold fastening faster breeder reactor nuclear power plant fast Ethernet Fast-Evolving Luminous Transients fast evolving star fast fading fast Fibonacci transform fast fine structure fast-fired coating fast fission fast fluidized bed fast food fast food restaurant fast Fourier transform fast Fourier transform, FFT fast fringe fast gas chromatography fast gossiping fast green

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