“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	utility computing utility function utility graph utility management systems utility of periodicals utility pipeline utility problem utility program utility room/laundry room utility software utility systems integration utility theory utility theory for games utility tunnel Utility Tunnel Law utilizable regulation utilization and improvement of purplish soil utilization and reclamation of lime concretion black soils utilization coefficient utilization coefficient of irrigation water utilization coefficient of out driving time utilization degree of waterflooding reserve utilization efficiency of feed energy utilization landfill biogas utilization of agricultural biomass energy

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。