西安地裂是一种重大城市环境地质灾害。
Xi 'an rupture is a type of heavily urban environment geologic disaster.
采空区塌陷属于煤矿区的环境地质灾害问题。
Collapse of mined-out area is an environmental geological hazard of the coal mining area.
地裂缝灾害是西安市主要的环境地质灾害问题。
Ground fissures have been the main environment geological disaster in Xi 'an city.
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