“Cross-sectional study”的概念、定义、翻译、参考文献-科学参考

单词	Cross-sectional study
释义	Cross-sectional study Encyclopedia 医学流行病学研究的统计学设计释 Cross-sectional study横断面研究统计学设计用来估计目标人群在某一时刻感兴趣变量（数量）分布的研究。即在某一时刻对抽样样本的每个受试对象调查一组观察变量。
随便看	township musical township planning township public finance township records township seat planning townships with distinct characteristics township treasury Townspeople Uprising in New Granada Townsville town-village settlements system town-village system town（rural）construction planning Towolhoe to work wonders towpath of Shanyin county tow-to-top process towveyor toxemia and septicemia toxic and harmful contaminants monitoring toxic and harmful gas detection alarm toxic and harmful grass toxic and non-toxic toxicant toxicant purification toxic article

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。