“观察性研究”的概念、定义、翻译、参考文献-科学参考

单词	观察性研究
释义	观察性研究 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。
随便看	subspectral subsphere sub-stage substage substance substance abuse substance and technique of writing Substanced Essay Society substance flow analysis substance is subject substance, matter substance metabolism test substance-related disorders substandard substandard drugs substandard propagation substandard refraction substantial acceleration substantial constant substantial convergence substantial definition substantial equivalence principle substantial immersion substantial theory in psychology substantial variation

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。