This system may place on the taxi roof and other vehicles; roll broadcasts the content of city propaganda, literary style service, advertizing info and service guide and so on.

该系统可安置于出租车车顶和其他各类交通工具，滚动播出城市宣传、文体服务、广告信息和服务指南等内容。

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Based on the people the huge economic value value which brings to the commercial advertizing, we cannot neglect the public service advertizing the value huge potential.

基于人们对商业广告所带来的巨大的经济价值的重视，我们不能忽视公益广告的价值的巨大潜力。

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The article through to the public service advertizing historical analysis, pointed out its value is big, and how carry on the analysis and the research to can better realization its value.

文章通过对公益广告的历史性的分析，指出其价值之大，并对如何能更好的实现其价值进行分析与研究。

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