“外用避孕”的概念、定义、翻译、参考文献-科学参考

单词	外用避孕
释义	外用避孕 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	unambiguous grammar unambiguous language unambiguous solution unanimity unannealed unannotated edition unannounced satellite unar unarmed injury unary unary algebra unary algebraic operation unary cofactor triangle unary composition law unary extension unary object unary operation unary operator unary predicate unary relation unaspirated sound unaspirated voiceless initials unassigned imperial clan unassigned reading frame unattainability

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。