例句 /

Abstract: On the basis of the analysis about noise sources of the air compressor,it shows that air dynamic noise is primary one.According to the theory of fluid mechanics,the mathematics model of the air compreesor air dynamic noise is found,which shows t

Abstract: On the basis of the analysis about noise sources of the air compressor,it shows that air dynamic noise is primary one.According to the theory of fluid mechanics,the mathematics model of the air compreesor air dynamic noise is found,which shows t

文摘:通过对空压机噪声源的分析,确认空压机噪声源中的空气动力性噪声为最强;由流体流场的声学理论,建立空压机动力性噪声源的力学模型,它表明声功率与其它参数的关系;并知空压机的空气动力性噪声呈低频特性,这为噪声及振动控制提供了可靠的依据.