请输入您要查询的字词:
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
crimes of online click farming fraud
crimes of organizing, forcing, luring, sheltering or procuring other persons to engage in prostitution
crimes of producing and marketing fake or substandard commodities
crimes of producing, selling, or spreading obscene articles
crimes of property violation
crimes of smuggling
crimes of smuggling, trafficking in, transporting, or producing drugs
crimes of violating military duties
crime solving campaign
crime space analysis technology
crime statistics
Crime Stoppers International
crime to open,concealing or destroying mail or telegrams
crime trend
crimidine
criminal
criminal action jurisdiction
criminal activity to encroach on the minors
criminal agency
criminal anology
criminal anthropology
Criminal Archives of Baodi County in the Qing Dynasty
criminal behavior
criminal biology
criminal burden of proof
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。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2025/7/1 18:24:50