“跟踪观察研究”的概念、定义、翻译、参考文献-科学参考

单词	跟踪观察研究
释义	跟踪观察研究 Encyclopedia 管理学跟踪观察研究释 longitudinal study跟踪观察研究为了研究某一研究对象发展历程或生命周期中的状况，选定合适的观察样本，沿着事实动态发展的轨迹，进行观察，从而探寻其各个发展阶段的规律。又称纵向研究。
随便看	average run length average sample average sample function average sample number average sample number (ASN) Average sample number curve average sample size average sample size curve average sampling error average search length average search length, ASL average seek time average service availability average share price method average speed average storey of residential buildings average temperature average temperature in China average thermal noise electric current average time average t-matrix approximation average t-matrix approximation, ATA average total inspected average trajectory average value

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。