催化转换器提供一种处理废气的方法。催化转换器位于排气系统中，在发动机和消声器之间。
Catalytic converters provide the method of treating exhaust gases. Catalytic converters are located in the exhaust system, between the engine and the muffler.
消声器把发动机的噪音消弭了。
发动机排气噪声是汽车噪声中一个主要声源，消声器是控制排气噪声的一个重要方法。
Engine exhaust noise is one of the main sources of automobile noise, and using of silencer is an important method controlling exhaust noise.
根据发动机工作过程，对排气消声器进行了改进设计。
Based on engine working process, the improving design of exhaust muffler was developed.
压力损失是评价消声器性能的重要指标之一，直接关系到发动机的功率损耗。
Pressure loss is one of important factors in evaluating muffler performance, which is related to power loss of engine directed.
作者应用不稳定流动计算机模拟方法，不仅能估算排气消声器特性，还能模拟不同消声器结构对发动机性能的影响。
With the computer simulation of exhaust mufflers and IC engines, the influence of mufflers on engine performance as well as exhaust noise can be predicted.
根据特种发动机排气噪声的特性和消声器的安装要求，设计了一个组合式排气消声器。
According to the exhaust noise characteristics of special engine and the installation request of exhaust muffler, the exhaust muffler for special engine was designed.
文中利用传递矩阵法，建立了某轿车消声器与发动机的联合模型，对该消声器的各项性能进行了数值模拟。
A united model for engine and its exhaust muffler of a car is established using transfer matrix method, and a numerical simulation on the performances of exhaust muffler is conducted.
这种消声器降噪效果好，且结构简单、能够改善发动机排放。
And it has good noise reducing effect, simple in structure and able to improve gas exhaust of the engine.
消声器的皮兹重视，发动机安装完成。
With the pitts muffler attached, the engine installation is complete.
通过对某种发动机使用的消声器进行测试，对消声器的静态传声损失性能作出评价。
Through testing on muffler on a certain motor, the paper evaluates the static performance of sound transmission loss of the muffler.
通过对某种发动机使用的消声器进行测试，对消声器的静态传声损失性能作出评价。
Through testing on muffler on a certain motor, the paper evaluates the static performance of sound transmission loss of the muffler.
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