“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	Emperor's Eastern Expeditions in Qing Dynasty Emperor's Female Son-in-law Emperor Shang of Han Dynasty Emperor Shao of Han Dynasty emperor ShaoZhu Liu JiEn of North Han Emperor Shengzong of Dynasty Emperor Shengzu of Qing Dynasty Emperor Shenzong of Song Dynasty Emperor Shenzong of Western Xia Dynasty Emperor Shizong of Jin Dynasty Emperor Shizong of Qing Dynasty emperor ShiZu LiuMin of North Han Emperor Shizu of Yuan Dynasty Pacificated Yunnan Stele Emperor Shun of Han Dynasty Emperor Shunzong of Tang Dynasty Emperor Song Gong Emperors' Records of Ming Dynasty Emperor's response to the subordinate Emperor Taiwu of Northern Wei Emperor Taizong of Jin Dynasty Emperor Taizong of Liao Dynasty Emperor Taizong of Song Dynasty Emperor Taizong of Tang Dynasty Emperor Taizu of Jin Dynasty Emperor Taizu of Liao Dynasty

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