美利体育登录入口官网:GB/T 14573.4-1993
声学 确定和检验机器美利体育官网首页网址规定的噪声辐射值的统计学方法 第4部分;成批机器标牌值的确定和检验方法
Acoustics. Statistical methods for determining and verifying stated noise emission values of machinery and equipment. Part 4: Methods for stated values for batches of machines
GBT14573.4-1993, GB14573.4-1993