GB/T 17248.2-2018声学机器和设备发射的噪声在一个反射面上方可忽略环境修正的近似自由场测定工作位置和其他指定位置的发射声压级国家标准
英文:Acoustics—Noise emitted by machinery and equipment—Determination of emission sound pressure levels at a work station ...
英文:Acoustics—Noise emitted by machinery and equipment—Determination of emission sound pressure levels at a work station ...