“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	rock mass sliding stability in dam foundation rock mass stability rock mass strength rock mass strength experiment rock mass structure cybernetics rock mass support and reinforcement theory rock mechanics rock mechanics experiment rock mechanics experiments rock moisture content experiment rockoon rockoon sounding rock ore appraisal sampling rock/ore radioactivity Rockot launch vehicle Rock Painting Rock Painting of Tibet rock paintings in Alxa League rock paintings in Chifeng City rock paintings in Dengkou County rock paintings in the Baicha River basin rock paintings in the depopulated zone of northern Tibet rock permeability rock permeability coefficient rock permeability experiment

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