Winding through mountains and under highways, a man made tunnel system 44 miles long will pump the water into a reservoir.
穿山越谷，一个44英里长的人造管道系统把水抽到水库里。
By way of safety system engineering method analyzing, in this paper, the general safety system on the tunnel fire protection and rescue of the long highway tunnel is discussed.
从安全系统工程的角度考虑，本文较全面的论述了长大双洞公路隧道火灾防灾救援安全体系。
Whether the ventilation system is designed reasonable or not can significantly affects the construction of long highway tunnel for its high cost in economy and energy.
长大公路隧道的通风系统工程造价高、运营能耗大，通风系统设计合理与否，对长大隧道工程建设有重要影响。
Whether the ventilation system is designed reasonable or not can significantly affects the construction of long highway tunnel for its high cost in economy and energy.
长大公路隧道的通风系统工程造价高、运营能耗大，通风系统设计合理与否，对长大隧道工程建设有重要影响。
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