“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	grape downy mildew grape family grape industry grape-like pestilence grape phylloxer grape phylloxera grape powdery mildew grape ripe rot grape root knot nematode disease grapeseed oil grapes patterns grapevine grapevine brown leaf spot grapevine fanleaf disease grapevine guminy stem blight grapevine leafroll disease grape white rot graph graph algorithm graph algorithms graph antihole graph arc graph automorphism graph bar graph-based dependency parsing

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。