“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	stomatology stomatology comprehensive treatment devices stomatology comprehensive treatment devices ancillary stomatology materials stomoblastula stomochord stomodaeum Stone stone Stone Age of Australia Stone algebra Stone Ancestral Shrine at Xiaotangshan Stone and Jade Inscriptions Recording Allieces from Houma stone artefact stone beam stone biofilm stone breacker stone bridge Stone Burin Stone-Campbellites stone canal Stone Canal Pavilion stone carving stone carving at Cao'an Manichean Temple in Quanzhou, Fujian Province stone carvings at Wus' tombs in Jiaxiang

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