日益恶化的突发性水污染事件始终是国内外大多数城市水源地安全和城市供水安全的重要威胁。
Water pollution incidents have been gradually become major threats to the safety of the areas of urban water supply both in domestic and international cities.
随着我国城市化战略的加快实施，在水资源紧缺、水质污染加剧、突发水污染日益频繁的形势下，城市供水安全问题已不容忽视。
It could not be ignored as urbanization is speeding up, especially when the situation of water shortage and pollution is more and more serious.
乌拉泊水源地为乌鲁木齐重要的城市供水水源地，被定为一级水源保护区，水资源储量的多少及水质的好坏事关乌鲁木齐的用水安全。
The Wulapo water source is an important water supply source for the Urumqi City, also it was fixed for first one-level water source protected area.
城市供水系统是极其重要而复杂的网络系统，确保其安全可靠的运行和正确有效的管理具有重大意义。
Due to importance and complexity of water distribution systems, it is important significance to ensure water distribution systems to safety work and effective management.
本文分析了我国城市供水存在的主要问题，并以开源节流加强保护为原则提出了安全保障对策。
This paper discusses the problem of our urban water supply and suggests some guarantee countermeasures based on exploring new water resources, saving water and enhancing protection.
本文分析了我国城市供水存在的主要问题，并以开源节流加强保护为原则提出了安全保障对策。
Study on present situation and conservation strategies for the endangered species, Sinopodophyllum emodi in Liupan Mountain of Ningxia;
本文分析了我国城市供水存在的主要问题，并以开源节流加强保护为原则提出了安全保障对策。
Study on present situation and conservation strategies for the endangered species, Sinopodophyllum emodi in Liupan Mountain of Ningxia;
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