空气和水声吸声材料研究现状

The recent researches of sound absorbing materials used in air and water

吸声降噪是人们普遍采用的降噪方法。叙述了空气声以及水声吸声材料的种类、性能特点，改善材料吸声性能的方法，以及吸声材料的研制现状与发展趋势。

Using sound absorbing materials is one way to reduce noise. This paper presents the recent researches on improving the sound absorption property and preparation of sound absorbing materials used in the air and under water.