“现场试验”的概念、定义、翻译、参考文献-科学参考

单词	现场试验
释义	现场试验 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	force-carrier particles force clamp spectroscopy force-clamp spectroscopy force components force constant force constant matrix force control forced forced abdication of Emperor Guangzong of Song forced absorption forced aeration aerobic composting forced air cooling forced breathing forced choice test forced circulation forced circulation crystallizer forced circulation pump forced collision method forced convection forced differential equation forced diffusion forced display Forced distribution method forced draft fan forced emission

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。