采集模型透视图：按照采集点、运行终端、电能表、总加组等采集设备的层次结构进行杳询。
Acquisition model perspective drawing: to enquire by the acquisition device level structure of acquisition point operating terminal electric energy meter total add group etc.
旅客换乘网络是用于优化旅客中转换乘的网络结构，是基于铁路网络、列车开行方案、列车运行时刻表等信息构造而成的。
It is used to solve the problem of passenger transfer, and is designed according to the informations of railway network, passenger train plan and timetable.
在设计中还充分考虑未来数据库运行的性能问题，合理使用反规范、表空间划分、索引、存储过程及触发器等设计方法来提高数据库的性能。
The designation takes future database operating into consideration, takes rationally anti-standard, table space division, index, storage process and trigger to upgrade database's performance.
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