它是一个指方向的标志。
The third chapter explains the applications of direction sign system theory and the analysis of present situation of Jinan direction sign system.
第三章是对导向标识系统相关理论知识的实际运用，是笔者对济南市导向标识系统现状的分析研究。
The third chapter explains the applications of direction sign system theory and the analysis of present situation of Jinan direction sign system.
第三章是对导向标识系统相关理论知识的实际运用，是笔者对济南市导向标识系统现状的分析研究。
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