“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	Tea Classics Tea Classics of Lu Yu Tea Classics of Zhang Qiande tea classification tea cloth TEA CO_2 laser TEA CO_2 激光器 tea color cluster three-hooked lotus pattern spring silk tea-colored immortal birthday line diameter yarn tea concentrated juice tea cultivation tea culture tea custom tea deep processed product tea deep-processing tea-determination of ash content tea-determination of caffeine content tea-determination of free amino acids content tea-determination of total polyphenols content tea-determination of water extracts content tea drinks teadust glaze tea early sprouting variety tea Exobasidium blight tea extra-early sprouting variety

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。