该放大器具有电源隔离电路和带宽限制，以减少振荡和汽船排气声。
The amplifier has a power isolation circuit and bandwidth limiting to reduce oscillations and motorboating.
在别人的汽车排气管里放个气球，车发动时发出爆炸声。
Put a balloon on the tailpipe of a someone's car so it will pop when they start their car.
用心听一听，是否有明显的漏气声或过分的排气噪声。
Listen to hear if there are any obvious air leaks or excessive exhaust noises.
穿孔屏对改善消声效果有较大的作用，同时，对发动机排气噪声中的脉动声有较好的消除作用；
The perforating shield contributes a lot in improving the muffling effect and at the same time has a function of eliminating the pulsating sound in the engine exhausting noise.
穿孔屏对改善消声效果有较大的作用，同时，对发动机排气噪声中的脉动声有较好的消除作用；
The perforating shield contributes a lot in improving the muffling effect and at the same time has a function of eliminating the pulsating sound in the engine exhausting noise.
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