Home / Standards / GB/Z 38251-2019 GB/Z 38251-2019 Active Acoustics—Calculation of sound attenuation during propagation for electrical converter station—Engineering method 声学 换流站声传播衰减计算 工程法 Standard Type GBZ ICS 17.140 CCS A59 Status 现行 Issue Date 2019-10-18 Implementation N/A Responsible Dept 中国科学院 Drafting Unit N/A