“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	combined echo ranging echo sounding combined electrochemical machining combined engine inlet combined environmental test combined environment test combined equations combined estimator combined ETC system combined events in athletics combined fabric combined fatigue combined filtering combined Filter separator combined fix-bed/moving-bed reforming process Combined forced and natural convection combined furnace combined geothermal power generation combined guidance combined head combined heat and power combined heat and power(CHP)system combined highway and railway bridge combined husker and whitener united rice mill combined hybrid electric combined immunodeficiency disease

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。