“横断面研究”的概念、定义、翻译、参考文献-科学参考

单词	横断面研究
释义	横断面研究 Encyclopedia 理学临床试验的自适应性设计释 cross-sectional study横断面研究在特定时间，对特定人群进行普查或抽样调查，研究人群健康状况或患病率的一种流行病学研究方法。
随便看	Summer Triangles Summer’s Last Will and Testament summing summing operator summit Summit Conference between the Five Countries of Central Asia in 1993 summit diplomacy summit-metabolism Summit of the Heads of the Central American States Summit of the Presidents of the Central American States Summit of Turkic-Speaking Countries Summit on Information Construction of American Association of Information Science and Technology sum mod m summon Sumner crater Sumner line sumo sum of all coefficients equal to 1 sum of a progression sum of a series sum of cardinal numbers sum of deviations squares sum of divisors sum of energy production sum of events

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。