“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	double curve double curved surface double cusp double custody system for electronic records and paper records double cutting hair double cylinder double-cylinder-doffer card double cylinder weft knitting machine double dagger double data encryption standard double data encryption standard, double-DES double data rate double data rate, DDR double-data-rate four double-data-rate four, DDR4 double-data-rate three double-data-rate three, DDR3 Double-deck Road double deoxidation termination method double-DES double difference double-difference phase observation double differential double-differential cross-section double diffused metal-oxide-semiconductor circuit

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。