您要查找的是不是：
- 声源真实A声级LA (r0)
- A声级A sound level
- 真实true
- 声noise
- 等效A声级equivalent A-weighted sound pressure level
- 面声源area source of sound
- 世界部分国家摩托车A声级噪声限值The A-level Noise Limits of Motorcycles in Selected Countries
- 复声源compound sound source
- 线声源line sound source
- 板声源plate sound source
- 混声源compound source
- 线列声源linear array of simple source
- 活塞声源piston acoustic source
- 声源辨识acoustic source identification
- 气动声源aeroacoustic source
- 空气声源airborn source
- 声源宽度apparent source width
- 宽带声源broadband source
- 组合声源built-up sound source
- 运动声源Moving acoustic source
