吸声特性 meaning in English
acoustic performance
acoustical performance
sound absorption characteristic
Examples
- Anechoic coatings " efficiency is getted from its front and back many layer ' s transfer loss compared . first , absorptive characteristic of homogeneous material is analyzed thoroughly . then wkb perturbation means are used to calculate absorption coefficient of the impedance transition structure in this paper
本论文首先对均匀材料的吸声特性做了深入的分析，并详细讨论了wkb微扰摄动法，利用wkb方法计算阻抗过渡结构的吸声系数。 - First , the theoretical analysis about the micro perforated absorber is present in this paper . then , the source noise of the apu of ma60 is obtained by the outside test in airport . based on the test result , a micro perforated absorber is designed and produced
论文根据微穿孔板吸声体理论和微穿孔板消声器的基本理论，对微穿孔板消声器结构参数与吸声特性之间的相互影响进行了深入的分析和探讨；建立了一套微穿孔板吸声结构的设计方法。 - The material parameters are primaryly optimized . based on the analytical models of underwater anechoic coatings and the simulation research , the absorptive characteristics of some structures are analysed . some advice are provided on improving absorptive characteristic of anechoic coatings , and enhancing submarine ' s concealing ability
根据水下消声覆盖层解析模型理论和大量的仿真研究，本文分析了消声层一些结构声学参数的吸声特性，提出了一些改进消声层吸声性能，提高潜艇声隐身性能的建议。 - These researches provide us a basis for forecasting the pests in grain in earlier stage , accurately utilizing pesticides , improving the efficiency of prevention and reducing the loss of stored grain . the sound absorption properties of various types and thickness of grain are measured by means of the standing wave tube technique . the following conclusions can be drawn : for the same thickness the larger grains has a smaller sound absorption coefficient than the smaller grains
为了有效地研究储粮害虫所产生声信号在各种粮食中的传播特性，本文采用驻波管法，对十一种不同种类粮食在不同堆积厚度情况下的吸声性能进行了实验研究，粮食吸声特性与其颗粒的大小、形状、排列方式及粮食堆积厚度等有关，存在一定的规律，得出如下结论：同一厚度下，颗粒大的粮食较颗粒小的吸声性能差，颗粒由大到小，吸声系数峰值频率向低频方向移动；球形颗粒粮食较长形颗粒吸声性能差。