但长大隧道经过地区往往地质条件复杂、施工地质灾害频发，其严重影响了长大隧道建设。
But these tunnel usually through region with complicated geology term, construction geology hazards usually take place.
但长大隧道经过地区往往地质条件复杂、施工地质灾害频发，其严重影响了长大隧道建设。
But these tunnel usually through region with complicated geology term, construction geology hazards usually take place.
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