城市交叉路口与汽车废气污染王国荣，王天力在城市里行驶，汽车常常不得不在交叉路口上停留。这时，发动机处于怠速空转状态。发动机急速运转时，特别是利用发动机制动时和猛踩加速踏板时，都会排放出比平时更多的有毒气体，据发动机台架试验测定，在三种不同转速下，ＥＱ... Urban Intersections and Car Exhaust Pollution Wang Guorong and Wang Tianli are driving in cities and cars often have to stop at intersections. At this time, the engine is in idling idle state. When the engine is running rapidly, especially when using the engine brake and violently pressing the accelerator pedal, it emits more poisonous gas than usual. According to the engine bench test, the EQ ...