“field trial”的概念、定义、翻译、参考文献-科学参考

单词	field trial
释义	field trial Encyclopedia 医学现场试验释 field trial现场试验在社区的现场条件下，以尚未患某病的人作为研究对象，按随机分配原则将研究对象分为实验组和对照组，实验组给予某种干预措施（研究因素），对照组不给予干预措施或给予安慰剂，比较两组结局的方法。又称人群预防试验。
随便看	planning of Nansha New District planning of national groundwater utilization and protection Planning of New York City planning of Palace of Versailles Planning of People's Square in Shanghai planning of regional medical center planning of scenic area in city planning of schistosomiasis prevention related with water conservancy planning of soil and water conservation planning of South Manchuria Railway Company attached land planning of the 1999 World Horticultural Exposition Planning of Tianjin Economic and Technological Development Area planning of Tokyo planning of transportation planning of treat and disposal facilities for municipal solid wastes planning of urban environmental protection planning of urban flood control planning of urban sanitation facilities planning of warsaw Planning of Washington D.C. planning of water intake hubs in ancient China planning of Yunnan Dian Zhong New Area planning of Zhengzhou planning on comprehensive disaster resistance and prevention planning outline of scenic regions

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