“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	nuclear electric quadrupole coupling tensor nuclear electric quadrupole moment nuclear electromagnetic pulse nuclear electromagnetic pulse effect nuclear electromagnetic pulse effects on electronic system nuclear electromagnetic pulse simulation nuclear electronic instrument nuclear electronic instrument for geological-mining nuclear electronic instrument for precise analysis nuclear electronics nuclear emulsion nuclear endosperm nuclear energy nuclear energy level nuclear energy level density nuclear energy-level scheme nuclear energy loss nuclear energy technology nuclear ensemble nuclear envelope nuclear environment nuclear equation nuclear ethics nuclear evolution time nuclear excited state

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