The most directly manifestation that Geological disasters threat to the safety of city is its damage to the urban lifeline engineering.
地质灾害对城市安全所造成的威胁，最直接的表现就是对城市生命线工程的破坏。
ACCESS2000 database for natural disaster is developed, including disaster sources, engineering geology, construction and urban lifeline data.
通过自然灾害数据库的建立，灾害源、工程地质、建筑和城市生命线等数据的ACCESS数据库分别建立起来了。
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