[据DARPA网站2011年3月25日报道]现今许多冲突发生在城市当中，这使指挥人员和任务规划人员的城市区域可视化能力日益重要。
GMT, March 25, 2011 Many of today's conflicts occur in urban Settings, making the ability to visualize conditions in urban areas increasingly important to commanders and mission planners.
大都市区是一个国家和地区经济发达的城市化区域。
Metropolitan area (MA) is an urbanized region of an economically developed country and region.
大都市区是在城市进入郊区化阶段之后，逐渐形成的城市与区域一体化的空间地域类型。
The metropolitan district is the space region type of the integrating between the urban and region after the city enters the suburb stage.
对西安市区域内雨水下渗和贮存、实现雨水资源化及其利用等方面做了探索，并根据实际情况对西安市雨水资源化的必要性、可能性及可持续性进行了分析。
The writer probes into permeation and storage of rainwater, and its further utilization as a resource, and also analyses the necessity, possibility and sustainability of it in Xian city.
对西安市区域内雨水下渗和贮存、实现雨水资源化及其利用等方面做了探索，并根据实际情况对西安市雨水资源化的必要性、可能性及可持续性进行了分析。
The writer probes into permeation and storage of rainwater, and its further utilization as a resource, and also analyses the necessity, possibility and sustainability of it in Xian city.
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