Abstract：Research on intelligent CAD system of railway new line is a very difficult project. This paper attempt to discuss some basic problems in detail，such as determining the system structure, selecting the develop environment and managing the information,etc.
易思蓉. 铁路新线设计智能CAD系统中 几个基础问题的研究[J]. 铁道工程学报, 1997, 14(3): 97-102.
Yi Sirong. RESEARCH ON SEVERAL BASIC PROLBEMS IN INTELLIGENT CAD SYSTEM OF RAILWAY NEW LINE. Journal of Railway Engineering Society, 1997, 14(3): 97-102.
1997, Vol. 14 
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