“natural family planning”的概念、定义、翻译、参考文献-科学参考

单词	natural family planning
释义	natural family planning Encyclopedia 医学避孕释 natural family planning自然避孕法根据女性月经周期和周期中出现的症状与体征，间接判断排卵过程，识别排卵前后的易受孕期，进行周期性禁欲而达到避孕的方法。又称安全期避孕法。
随便看	multichannel analyzer (MCA) multichannel assisted injection multichannel-assisted injection multichannel astrometric photometer multichannel coronagraph multichannel coronal spectrometer multichannel coronograph multichannel detector multi-channel digital ultrasonic test instrument multi-channel eddy current test instrument multi-channel electronic system multichannel filter spectrometer multi-channel fin field effect transistor multi-channel high-speed access system multichannel holography multichannel Kondo effect multi channel laser system multi-channel laser system multichannel laser system multi-channel MAC multichannel magnetograph multichannel multipoint distribution service multichannel multipoint distribution service, MMDS multichannel photometer multichannel photometry

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。