“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	planned unit development Planned Unit Development Regulations planned water use planned wet layer for irrigated grassland Planner Planners planning planning and administrative licensing of various temporary constructions planning and compensation planning and construction of Luoyi in Western Zhou planning and construction of venues for the 2022 Olympic and Paralympic Winter Games in Beijing planning and design conditions planning and design for forestation planning and design for planting landscape planning and evaluation system planning and management of construction project completion data planning and management of mineral resources planning and programming of construction planning and urban design agency Planning approval for construction land planning brief of scenic regions planning code planning condition planning condition change planning database

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。