声能级 meaning in Chinese
level of sound energy
pwl
sound power level
Examples
- Acoustics - determination of sound power levels of noise sources - guidelines for the use of basic standards
声学.噪声源的声能级的测定.基础标准使用导则 - Acoustics - determination of sound power levels of noise sources using sound intensity - part 2 : measurement by scanning
声学.用声密度测定噪声源的声能级.第2部分:扫描法测定