“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	Kun opera music Kun opera singing style system Kun opera tunes Kunqu Dictionary Kunqu oOpera flute discovered in Dongshan County Kunqu Opera Kunqu opera school of Gaoyang County Kunqu Score of Tianyun Club Kunqu training institutes Kunqu tune of the South, Yiyang tune of the North, Liuzi tune of the East and Bangzi tune of the West Kunsan Kunshan Economic and Technological Development Zone Kunshan High-Tech Industrial Development Zone Kunshan Poetry Kunshan Poetry,block-printed edition by Kunshanxian School,third year of Kaixi era,Song Dynasty Kunshan Shi Kunshan Tune Kunsthistorisches Museum Vienna Kunstmuseum Liechtenstein Kunugui Kinjiro Kunwu Jian Kunwu Sword Kunyang Group Kunya Urgench Kunyu Shan

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