“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	chemistry of cluster compound chemistry of element chemistry of elements chemistry of energy source chemistry of forest products chemistry of pine oleoresin chemistry of rare gas chemistry of salt lake chemistry of salt lake resource chemistry of sea water resources chemistry of silicate chemistry of soil pollution chemistry of surrogates of chlorofluorocarbons chemistry of the atmospheric aqueous phase chemistry of the solar system chemistry of the stratosphere chemistry of the troposphere chemistry of the upper atmosphere chemistry of tree extractives chemistry of volatile fission product Chemistry Related to Utilization of Aquatic Products Chemnitz chemoattractant chemoautotroph chemoautotrophic microorganism

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。