This is an introduction to the unique logic plan of SEI interlocking System brought in Qin-Shen Passenger Dedicated Line from Europe, coming with an interlocking flow chart.
通过对我国秦沈客运专线引进的欧洲高速铁路SEI系统联锁逻辑实现方式的研究探索，并配以联锁流程图予以说明，介绍SEI系统特有的联锁逻辑方式。
At the same time, it conducted introduction to its system requirement analysis, data flow chart, the diagram of ER, the database designs, and the main page layout and realize its module.
同时，对该系统的需求分析，数据流程图，ER图。数据库设计，以及主要页面和模块的实现进行了介绍。
At the same time, it conducted introduction to its system requirement analysis, data flow chart, the diagram of ER, the database designs, and the main page layout and realize its module.
同时，对该系统的需求分析，数据流程图，ER图。数据库设计，以及主要页面和模块的实现进行了介绍。
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