Outlet air temperature of underground tunnel can meet ventilation design demand of hydropower house. Tunnel ventilation can provide a comfortable working environment for the house.
坝体廊道出口处空气温度满足水电站厂房的通风空调设计要求，廊道送风可以为厂房提供良好的工作环境。
The space of underground transportation system is always small and poor ventilation. Once a blast occurs in the tunnel, it will cause serious casualties and great economic losses.
地下交通系统空间小、通风条件差，一旦受到爆炸荷载的冲击，往往造成惨重的人员伤亡和重大经济损失。
The space of underground transportation system is always small and poor ventilation. Once a blast occurs in the tunnel, it will cause serious casualties and great economic losses.
地下交通系统空间小、通风条件差，一旦受到爆炸荷载的冲击，往往造成惨重的人员伤亡和重大经济损失。
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