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公路隧道火灾发生的原因及频率 ,对公路隧道火灾特点作了初步探讨 ,对公路隧道的结构防火保护措施进行了初步的理论研究
The reason and the frequency of the highway tunnel fire have been discussed preliminarily on the characteristics of the highway tunnel fire and the preliminary theoretical research on the structural fire protection of the highway tunnel