“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	Maillard reaction mail order bookstore mail order channel mail-order for books mail processing place Mail Questionnaire mail route mail sends code name Mails of Rivers and Mountains by Zhao Fu mail sorting mail transfer agent mail transfer agent, MTA mail user agent mail user agent, user agent, UA maimendong decoction Mai Menghua main amplifier main and auxiliary lens Mainardi Mainardi-Codazzi equations main asteroid belt main band Main Bank System main beam main-beam efficiency

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