声功率

• Methods of measuring the sound power of ultrasonic diagnostic equipment for medical use
  医用超声仪器声功率的测量方法
• Acoustics - determination of sound power radiated into a duct by fans - in - duct method
  声学风机辐射入管道的声功率测定管道法
• Transmitting sound power
  发射声功率
• Acoustical speech power
  语言声功率
• Reference sound power
  参考声功率
• Wind turbines - part 14 : declaration of apparent sound power level and tonality values
  风轮机.第14部分:表面声功率级和音调值声明
• Standard test method for field measurement of sound power level by the two - surface method
  用双面法现场测量声功率级的标准试验方法
• Sound power level
  声功率级
• Guidelines for the use of sound power standards and for the preparation of noise test codes
  声功率标准的使用导则和噪声试验规程的制定导则
• Analysis of errors due to scanning paths in sound power measurement using scanning intensity method
  扫描声强法声功率测量的扫描路径误差分析