城市网格化管理是我国数字城市技术应用领域的重大突破，在国际上处于领先地位。
City grid management is a great breakthrough in the application of digital city technology in our country, and takes the lead in the world.
研究小组首先利用可能是被掩埋城市的卫星影像来寻找遗址，然后综合利用探地雷达，数字地图和水下技术来进行进一步调查。
The team used a satellite photo of a suspected submerged city to find the site then surveyed it with a combination of deep-ground radar, digital mapping, and underwater technology.
城市遥感在海量数据获取和处理方面具有强大优势，因而成为数字城市建设的核心技术之一。
Urban remote sensing has strong superiority in mass data acquisition and processing, thus it becomes the core technology of the construction of digital city.
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