It is revealed by a great amount of test and research work that there is a significant effect of atmospheric temperature and atmospheric pressure on Diesel engine smoke emission.
通过大量的试验研究，发现大气温度和大气压力对柴油机烟度排放有很大的影响。
Through the road test on JETTA passenger car, research the effect of the vehicle velocity, load and tire pressure on the relative difference of pulse counts of wheel sensors.
通过对捷达轿车的道路试验，研究了汽车行驶速度、载荷及轮胎气压对轮速传感器脉冲数相对差值的影响。
The emphasis of the research was put on the effect of pressure on carbonization test.
重点考查了压力变化对干馏产物数量和性质的影响。
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