“birth and death urn model”的概念、定义、翻译、参考文献-科学参考

单词	birth and death urn model
释义	birth and death urn model 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	Sangfu Sanggan He Sanggou Wan sangha Sangha River Sangha Trinational Park Sang Hongyang Sang Hu Sang Hwa Jeom Sangiran Early Man Site Sangiran Homo erectus sangju drink Sangkhalok ceramic ware Sangkong language Sangonghe Formation sangpiaoxiao powder Sangre Grande Sangri Xian Sang Rou Sangs-rgyas rgyal-mtshan Sang Tong Sanguanmiao sanguinarine Sang Weihan sangxing decoction

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。