The pollution emission amount from the automobile is one of the most key parameters, as it is the ground for selecting schemas of ventilation and is the base for designing the tunnel ventilation.

• 而在公路隧道营运通风设计中，汽车污染物排放量是最关键的参数之一，它是选择通风方案的依据，也是隧道通风设计的基础。