Home / Standards / NB/T 20273-2014 NB/T 20273-2014 Active 压水堆核电厂放射性疏水和排气设计准则 Standard Type NB ICS N/A CCS N/A Status Active Issue Date 2014-06-29 Implementation 2014-11-01 Centralized Committee 国家能源局 Issuing Authority 国家能源局