The fault diagnosis system of natural gas pipe network based on GIS is composed of the basic function subsystem, comprehensive analysis subsystem and fault diagnosis subsystem.
基于GIS的天然气管网故障诊断系统由基本功能子系统、综合分析子系统以及故障诊断子系统组成。
The necessity and conditions needed of developing specialized GIS for underground gas pipe network system are also expounded.
近年来地理信息系统（GIS）技术不断成熟，为燃气管网规范化、自动化、科学化的管理创造了条件。
The necessity and conditions needed of developing specialized GIS for underground gas pipe network system are also expounded.
近年来地理信息系统（GIS）技术不断成熟，为燃气管网规范化、自动化、科学化的管理创造了条件。
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