... natural ventilation city tunnel 自然通风城市隧道 permanent ventilation of tunnel 隧道运营通风 construction ventilation of tunnel 隧道施工通风 ...
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...struction; during construction temporary ventilation 隧道运营通风permanent ventilation of tunnel; operation ventilation 隧道照明：tunnel lighting ..
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铁路隧道运营通风 permanent ventilation of railway tunnel
为了满足隧道运营通风需要或为了加快隧道施工进度，设置斜井的情况越来越多。
More and more inclined shafts are built in order to meet the need of tunnel ventilation or speeding up the tunnel's construction progress.
同时，变频调速的应用还可以节约大量电能消耗，提高隧道通风系统运营的经济性。
At the same time, the application of frequency conversion can also save power consumption, and improve economics benefits within the operation of the tunnel ventilation system.
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.
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