When GIS is used, it can satisfy not only requirements of operation reliability, flexibility and convenience for operation maintenance, but also simplify main electrical connection of the station.

GIS的使用，不仅满足电站运行可靠性、灵活性及运行维护方便等要求，而且简化了电站的电气主接线。

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The automatic station is an automatic processing instrument for surface meteorological observation, and its operation and maintenance is more complex.

自动站是应用于地面气象测报工作的自动处理仪器，操作维护较复杂。

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One important reason of causing inefficient of operation and management of small and middle-sized power station is bad management of regular maintenance and running.

中小水电站运行与日常维护管理水平的高低是影响电站效益的一个重要原因。

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