“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	utility boiler utility computing utility function utility graph utility management systems utility of periodicals utility pipeline utility problem utility program utility room/laundry room utility software utility systems integration utility theory utility theory for games utility tunnel Utility Tunnel Law utilizable regulation utilization and improvement of purplish soil utilization and reclamation of lime concretion black soils utilization coefficient utilization coefficient of irrigation water utilization coefficient of out driving time utilization degree of waterflooding reserve utilization efficiency of feed energy utilization landfill biogas

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。