“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	Treaty of Fez Treaty of Friendship and Commerce between Abyssinia and Great Britain Treaty of Friendship and Cooperation between Angola and the Soviet Union Treaty of Friendship and Cooperation Between Iraq and Soviet Union Treaty of Friendship and Cooperation Between Somalia and the USSR Treaty of Friendship and Cooperation Between Syria and Soviet Union Treaty of Friendship and Cooperation Between USSR and UAR Treaty of Ghent (1814) Treaty of Gori Treaty of Guadalupe Hidalgo Treaty of Hubertusburg Treaty of Hü-nkâr Iskelesi Treaty of Inch Treaty of Kanghwa Treaty of Karlowitz Treaty of Kyakhta Treaty of Lausanne Treaty of London Treaty of Madrid Treaty of Mpharane Treaty of Mutual Cooperation and Security between Japan and the United States of America Treaty of Nango Treaty of Nanking Treaty of Nerchinsk Treaty of Neuilly

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。