Research in this paper has certain value for CMMI to map out and carry out Heavy-duty truck competition strategy, and could be reference for other domestic chemical companies.
本文的研究对中信机电制造公司重型载货车产品战略的制定和实施有实用价值，对国内其它载货车生产企业具有参考价值。
In part one, the conception of the electronic map is defined on the basis of analyzing a lot of definitions in domestic country.
第一部分，在总结分析国内对电子地图定义的基础上，对电子地图的概念进行了界定。
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