本文提出了对软件工程中的图形文档进行布局处理的设计思想和布局规则，并且对数据流图和结构图这两类常用图形文档的布局给出了算法概述。

Design ideas and rules of graphic documents about layout processing in software engineering are described. An algorithm outline of ordinary DFD and sc layout is given.

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很多文章都对给定的代码段提供了高级的概述，而不是对算法和代码详细进行介绍。

Many articles give high-level overviews of a given section of code, rather than detailed descriptions of algorithms and code.

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接着概述现有的平面、层次以及位置辅助路由协议或算法并做了必要的分析和比较；

Second existing routing protocols or algorithms are outlined and compared as the classification of plane, hierarchical as well as the position aided ones.

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