“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	community public sports facilities community questions and answers community recreation centre community regeneration community rehabilitation community relations community renewal community representation Community Research and Development Information Service of European Commission community residents conference community resources community safety regulatory agency Community safety services community sampling community security community self-governing/community autonomy community sequence community service community service center community service station(center) Community service system community shopping center community social capital Community Social Organizations community social work

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。