The principles of developing a railwaylocation CAD system are discussed.
本文对铁路定线CAD系统开发的原理进行了介绍。
2
Knowledge expression model is one of the kernel parts in the Virtual Environment RailwayLocation System.
知识表达模式是虚拟环境选线设计系统实现智能功能的关键部分。
3
The structure of railwaylocation engineering database management system was discussed in the dissertation . And a structure of Multiple Database System was applied to this system.