Acoustics . statistical methods for determining and verifying stated noise emission values of machinery and equipment . part 1 : general considerations and definitions 声学.机械与设备规定噪声发射值的测定和验证方法.第1部分:一般原理和定义
3.
Acoustics . statistical methods for determining and verifying stated noise emission values of machinery and equipment . part 1 : general considerations and definitions 声学确定和检验机器设备规定的噪声辐射值的统计学方法第一部分:概述与定义