【摘要】 本文简述了汽车、拖拉机产生噪声的机理、噪声传播途径和噪声对操作人员的影响以及对环境的污染,并提出了控制汽车、拖拉机噪声污染的某些措施.更多还原

【Abstract】 This paper discusses generating mechanism and propagation path of the noise developed by automobiles and/ or tarctors, and its effects to operators as well as caused environment pollution, and suggestes some possible means to control noise polution generated by automobiles and tractors.更多还原