In this paper the hierarchical location problem of urban disaster prevention and mitigation facilities is put forward and classified.
提出了城市防灾减灾设施的层级选址问题，并对其进行了分类。
Functions of road network include traffic and transportation, inbuilt space of public facilities, urban space framework, afforesting, disaster prevention etc.
对城市道路网承载的功能从交通运输、市政公用设施的埋设空间、城市骨架、绿化、防灾等七个方面进行了总结。
Functions of road network include traffic and transportation, inbuilt space of public facilities, urban space framework, afforesting, disaster prevention etc.
对城市道路网承载的功能从交通运输、市政公用设施的埋设空间、城市骨架、绿化、防灾等七个方面进行了总结。
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