“retrospective study”的概念、定义、翻译、参考文献-科学参考

单词	retrospective study
释义	retrospective study Encyclopedia 理学临床试验的自适应性设计释 retrospective study观察性研究在自然状态下对研究对象的特征进行观察、记录，并对结果进行描述和对比分析的研究。 Mathematics retrospective study回溯研究
随便看	melt static mixer melt stream extrusion melt treatment melt viscosity Melucta Melungtse Melvil Dewey Melville Island Melville Peninsula Melvin Calvin Melvin Ellis Calvin Mel’nikov Mel’nikov-Arnold integral Mel’nikov method MEM member memberane electrolysis method member galaxy member object member of a set membership Membership Creed of China Young Journalists Association membership function membership function of geomorphic types membership futures exchange

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