“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	Ornstein theorem Ornstein-Uhlenbeck Brownian motion Ornstein Uhlenbeck operator Ornstein-Uhlenbeck operator Ornstein-Uhlenbeck process Ornstein Uhlenbeck semigroup Ornstein-Uhlenbeck semigroup Ornstein-Uhlenbeck semigroup of operators Ornstein Uhlenbeck type stochastic partial diffusion equation Ornstein-Uhlenbeck type stochastic partial diffusion equation Ornstein Zernike equation Ornstein-Zernike equation Ornstein-Zernike relation oroantral fistula O. Rodrigues O. Rodrigues (1795—1851) O. Roemer O. Roemer, 1644—1710 OR (offset rational) curve orogenesis orogenetic process orogenic collapse orogenic cycle orogenic gold deposits orogenital syndrome

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