结构图的目的是显示建模系统的静态结构。
The purpose of structure diagrams is to show the static structure of the system being modeled.
“三分法则”实际上仅仅是“黄金分割”的简化版，其基本目的就是避免对称式构图，对称式构图通常把被摄物置于画面中央，这往往令人生厌。
The "Rule of the Thirds" is actually nothing else than a simplification of the "Golden Mean".
序章介绍了研究的背景与动机、目的与意义、内容与方法以及研究架构图。
Have introduced on the background and motivation, purpose and meaning, content and methods and research organization chart.
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