This article constructs a systematic structure of "Port, Hinterland Economy and Central City" by analysis of key elements and internal logical relations of International Shipping Center.
本文通过对国际航运中心理论构建、核心要素构成及内在逻辑关系的分析，构建了“港口—经济腹地—中心城市”的系统结构框架。
By using the method of questionnaire, mathematical statistics and logical analysis, this paper makes quantitative and dynamical analysis on condition of our hurdle race performance lag behind.
运用问卷调查、数理统计、逻辑归纳等方法，对我国跨栏跑项目落后状况影响因素进行量化和动态分析。
This research was carried out by methods of literature reviews and logical analysis.
采用了文献资料法和逻辑分析法。
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