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

单词	epidemiological experimental study
释义	epidemiological experimental study Encyclopedia 医学流行病学实验研究释 epidemiological experimental study流行病学实验研究将研究人群（病人或正常人）随机分为实验组和对照组，研究者对实验组人群施加或除去某种干预措施后，随访观察一段时间并比较两组人群疾病或健康状态的改变，对比分析实验组与对照组之间结局的差别，以验证研究假设和考核干预措施效果的一种实验方法。又称实验流行病学、干预研究等。
随便看	classified management of contaminated sites Classified management of pension institutions classified management of radiation safety Classified Materia Medica from Historical Classics for Emergency Classified Notes on Painting from the Bitter-Learning Studio classified number Classified Operatic Manuscripts from the Far Mountain Hall Classified Prefaces to Classical Chinese Opera Selections classified protection of government classified information classified protection of government information security classified protection of information system security classified reference tool Classified shares Classified Studies in Opera Classified Studies on Calligraphy and Painting from the Hall of Learning Antiquities Classified Supplement to Li Taibai's Poems Classified Texts on Chinese Painting Classified Theatrical Manuscripts from the Far Mountain Hall classified thesaurus Classified Twenty-Four Kinds of Poetry classifier classifiers classifying classifying equipment classifying map

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。