1. Acoustic and thermal insulation for silencer and exhaust pipes of automobiles. 汽车消音器，排气管的消音隔热材料；
2. Naturally the fully stainless steel rear silencer with chrome-plated tailpipe trim has been developed for the face lift models. 当然完全不锈钢镀铬排气管消声器修剪后已经制定了的脸电梯模型。
3. At the same time , we analyses the effect of the air speed on the property of silencer on real condition and modify the wave equation and the boundary condition. 同时，根据实际情况分析了气流对消声器特性的影响，对波动方程及其边界条件进行了修正。
英英解释
n.
1. short tube attached to the muzzle of a gun that deadens the sound of firing
2. a tubular acoustic device inserted in the exhaust system that is designed to reduce noise
