“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	proportion by alternation proportion by subtraction proportioner proportion of nonconforming items proportion of piped onto premises proportion of soil erosion control proportion of wind and solar power generation in electricity production proportion relationship between accumulation and consumption proportion relationship between two-major parts of social production proportion with equal means proposal proposals for the integrated logistics support of aircraft materiel proposed intake proposed ruling proposed solutions to engineering problems proposition proposition about dṛṣṭānta propositional propositional algebra propositional attitude propositional attitudes propositional axiom propositional calculus propositional connective propositional constant

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。