It illustrates the basic conceptions, function and structural feature in the system of townscape by using of the research findings and methods of present systematic theory.
同时，通过借助当代系统理论的研究成果与方法，对城市风貌系统的基本概念、功能、结构特征进行了深入的研究。
The improvement of design theory and construction technology of Bridges makes bridge span longer and structural style and function more complicated.
桥梁设计理论和施工技术的进步使得桥梁跨度不断有新的突破，结构型式和功能也日趋复杂。
Conceptual integration theory has complete networks, which function independently according to a set of uniform structural and dynamic principles.
概念整合理论具有完整的框架结构，遵循一套完整灵活的运作机制。
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