1.
sound attenuation
消声器（噪声衰减装置）
2.
This method broadens the silence frequency bandwidth of muffler and improves its silence fuction.
这种方法拓宽了消声器的消声频带宽度,改善了消声器的消声性能。
3.
air cleaner and silencer
空气净化器及消声器
4.
silencer(sound deadener)
噪音消声器（隔音材料）
5.
The Muffler of Election
竞选的“实质消声器”
6.
The Contrast of Simple Expanded-muffler with Large Porosity Perforated Muffler
简单扩张式消声器与穿孔管消声器对比研究
7.
EQUIPPED WITH MUFFLER ACCELERATOR AND AIR FILTER.
配备消声器、加速器和空气过滤器。
8.
Acoustics--Measurement procedure for silencers
GB/T4760-1995声学消声器测量方法
9.
Study on the Acoustic Attenuation Performance of Diesel Engine Exhaust Catalytic Silencers;
柴油机排气净化消声器声学性能研究
10.
Characteristic Simulation and Improvement of the ATV Muffler;
全地域四轮车消声器消声性能仿真与改进
11.
Research on Noise Elimination Characteristics and CAD of Motorcycle Muffler;
摩托车消声器消声特性及计算机辅助设计研究
12.
Computer Simulation of Acoustic Performance of Motorcycle Muffler;
摩托车消声器消声性能的计算机仿真分析
13.
Acoustic Performance Analysis and Computer Aided Design of Muffler;
消声器消声性能分析及计算机辅助设计
14.
Research on Attenuation Performance of a Semi-Active Exhaust Muffler Based on CFD
基于CFD的半主动排气消声器消声性能研究
15.
Influence of Rotation Velocity of Diesel on the Noise Elimination of Resistance Muffler
柴油机转速对抗性消声器消声效果影响的研究
16.
Computation of Acoustic Characteristics of Seawater Muffler with Waterproof and Sound Absorption Layers
内覆防水吸声层的海水消声器声学性能计算
17.
The Application Research of Expanding Room Muffler in Toilet Noise Control;
扩张室消声器在座便器噪声控制中的应用研究
18.
Studies of Acoustic and Flow Resistance Characteristics of Internal Combustion Engine Exhaust Silencers;
内燃机排气消声器声学和阻力特性研究