Based on a graph-model-database integration maintenance mode, with object-oriented technology, a maintenance system applied in the AC and DC system is developed in this thesis.
本文基于一种图形数据一体化的维护方式，采用面向对象技术，实现了一个适用于交直流系统的维护系统。
Based on a graph-model-database integration maintenance mode, with object-oriented technology, a maintenance system applied in the AC and DC system is developed in this thesis.
本文基于一种图形数据一体化的维护方式，采用面向对象技术，实现了一个适用于交直流系统的维护系统。
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