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跟踪观察研究
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跟踪观察研究
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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。
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metrizable continuum
metrizable group
metrizable proximity space
metrizable set
metrizable space
metrizable topological group
metrizable topological space
metrizable topology
metrizable uniform space
metrization
metrization problem
metrization theorem
METROC
metrocyte
Metro Express
Metro-Goldwyn-Mayer
metrograph
metrological
metrological accreditation
metrological authorization
metrological equipment for magnetic characteristics of materials
metrological history of the People's Republic of China
metrological management
metrological standards for magnetic characteristics of materials
metrological supervision
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