第三章：通过对国内外几个优秀案例的分析，阐述环境标识系统的设计在保护城市历史街区中所起到的重要作用。
Chapter Three: This chapter is going to set out the vital function of environmental sign system in city historic districts protection, through the analysis of home and abroad outstanding cases.
第三章：通过对国内外几个优秀案例的分析，阐述环境标识系统的设计在保护城市历史街区中所起到的重要作用。
Chapter Three: This chapter is going to set out the vital function of environmental sign system in city historic districts protection, through the analysis of home and abroad outstanding cases.
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