Water supply networks system is important infrastructure of city.
供水管网系统是城市的重要基础设施。
In addition, a pipe network description language for water supply system is designed to locate pipe networks in city terrain map.
给出一个管网系统(供水)的管网图形描述语言，使管网系统能快速准确地定位于地形图上。
In addition, a pipe network description language for water supply system is designed to locate pipe networks in city terrain map.
给出一个管网系统(供水)的管网图形描述语言，使管网系统能快速准确地定位于地形图上。
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