Hence vehicle occupants are exposed to air with pollutant concentrations 2-4 times higher than that breathed by vehicle occupants, depending on the type of pollutant.
因此车辆上的乘客所面对的空气污染密度比骑车人要高2 - 4倍，污染物不同，程度也不一样。
The major pollutant is TSP, now at air pollution tail gas style of motor vehicle has replaced coal soot style.
主要污染物是TSP，空气污染已由煤烟型向机动车尾气型转化。
应用推荐