dynamic noise造句

Dnr dynamic noise reduction
动态降噪电路
Dnl dynamic noise limiter
动态噪声抑制器
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 the relationship between the sound power level and other parameters . the knowing noise of the air compressor " s air dynamic is of low frequencies . the reliable data is provided for the noise and vibration control
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
It's difficult to find dynamic noise in a sentence. 用dynamic noise造句挺难的