您要查找的是不是：
- Helmholtz resonator has a good noise eliminating performance at low frequency. 亥姆赫兹共振腔具有良好的低频消声性能,被广泛地应用于低频消声方面。
- Helmholtz resonator has a good noise eliminating performance at low frequency.So it has been widely used on low frequency noise reduction. 摘要亥姆赫兹共振腔具有良好的低频消声性能，被广泛地应用于低频消声方面。
- This paper build an one dimensional axial propagating model for Helmholtz resonator, and the noise eliminating mechanism has been revealed. 建立了共振腔型消声器一维轴向声传播模型，揭示了圆形旁支型共振进气消声器的消声机理。
- By monitoring and surveying the amount of noise from the coal mine ventilating motor room,the noise eliminating measures based on the noise prototype is presented. 通过对煤矿通风机房噪声调查监测,提出利用通风机房噪声模型采取降噪措施,并将实际测量与理论计算值进行比较证明模型是正确的,措施是可行的。
- Helmholtz resonator has a simple configuration, but it has a good noise eliminating performance at low frequency.So it hs been widely used on the engine intake and exhaust noise reduction. 摘要亥姆赫兹共振腔结构简单，且有良好的低频消声性能，近几年来广泛地应用于发动机进排气消声上。
- And integrate actual circs and principle of noise elimination, Developed one kind of new silencer, Thereby gained our ends that noise is attenuated. 并结合我厂实际情况与消声原理，研制出了一种新型的消声装置，从而达到了降低我厂电解车间噪声的目的。
- It is experimentally shown that to achieve noise elimination and resolution improv... 试验证明，利用小波变换去噪和提高分辨率，不仅方便有效，而且有很好的保真度。
- Muzzle blast wave overpressure values of standard muzzle brake and muzzle brake using noise elimination theo. 通过实例计算了制式炮口制退器和采用消声原理的炮口制退器的炮口冲击波超压值。
- There is no noise elimination measure and noise standards to AHU, air supply unit, exhaust fans. 空调机组、新风机组、排风机均无消声措施及噪声指标。
- What basically be used at establishment of heating, air conditioning, noise elimination is outer vitreous adornment. 主要用于采暖、空调、消声设施的外层玻璃装饰。
- Aiming at the problem of noise elimination of radar p icture, a way to employ wavelet packet analysis to eliminate noise of radar pict ure is proposed. 针对船用雷达图像消噪问题 ,提出了应用小波包分析算法对雷达图像进行消噪处理。
- Noise elimination antivibration design and refrigeration engine room design, ventilation system's design, arrangement and so on. 消声防振设计及制冷机房的设计、通风系统的设计、布置等。
- A loud noise from the street diverted my attention. 街上一阵喧闹声转移了我的注意力。
- In this paper,the self-adapting noise elimination system based on back propagation network(BP) is presented and its the-ory and realization are analyzed. 介绍了BP自适应噪声抵消系统模型,分析了其原理及实现,并将其应用于发动机故障信号的处理。
- Moreover,in the test of pressure transmission exhaust and silencing of noise,the material shows more properties of exhaust and noise elimination than the burnt copper powder. 在气压传动排气消声的测试中,与铜粉末烧结件相比具有更好的排气性能和消声性能。
- The noise awoke her from her revery. 这声音把我她从沉思中惊醒。
- That noise is driving me frantic. 那种噪音真要把我弄疯了。
- The thick walls deadened the noise from the street. 这道厚墙隔绝了街上的噪音。
- A noise abatement notice is served on the club. 向俱乐部发停止大声喧哗的通知。
- The noise of traffic grows louder and louder. 交通的噪音变得愈来愈大。
