对气动凿岩机钎杆产生的噪声特性进行了分析研究，介绍了钎杆噪声的治理方法。

This paper analysed the noise characteristic of pneumatic rock drill stell. Introducing the harness method of pneumatic rock drill stell noise.

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在文中阐述了空气动力噪声的特性及产生机理，得出降低空气动力噪声的一些结论，这对于降低汽车发动机噪声提供了有效的方法与思路。

The property of air power noise and mechanism was elaborated, some conclusions that reduce air power noise were drawn. An effective method and idea on reducing automobile engine noise was put forward.

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对气动凿岩机产生的噪声声源进行了全面的分析研究，介绍了各声源的特性及测试方法。

This paper is based the full analyse and research of noise source of pneumatic drill.

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