The operational safety of the roads and bridges is not only closely related to people's lives and property, and also has impact on the credibility and development of the road sector, and is related to the national economy and social stability.%公路桥梁的运营安全不仅与人民群众的生命财产安全息息相关,而且对公路部门的信誉与发展有影响,关系着国民经济以及社会稳定的大局.
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