A discussion of contradiction between people and land in the accelerating period of urbanization process 城市化進(jìn)程進(jìn)入加速期的人地矛盾問題探討
Accelerating noise was measured and analyzed for a passenger car , the inlet air noise of its engine has been found to be the main noise source during the car accelerating period 運(yùn)用該技術(shù)對(duì)某汽車的加速噪聲進(jìn)行測(cè)量和分析,發(fā)現(xiàn)發(fā)動(dòng)機(jī)進(jìn)氣噪聲是該車主要的加速噪聲源。