“生灭瓮子模型”的概念、定义、翻译、参考文献-科学参考

单词	生灭瓮子模型
释义	生灭瓮子模型 Encyclopedia 理学临床试验的自适应性设计释 birth and death urn model生灭瓮子模型临床试验中一种自适应的序贯随机分配病人的方法（自适应设计或自适应随机化）。
随便看	productive function productive infrastructure productive labor and non-productive labor productive ore reserve productive plantation area productive practice productive property productive sampling productive set productive testing productive testing for agricultural machinery productive vibration productive vibration measurement productivity productivity-diversity relationship productivity hypothesis productivity measurement and evaluation system productivity of the arts product kernel product Kinetics product liability product liability insurance product library product life cycle product lifecycle assessment

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。