Home / Standards / NB/T 20333-2015 NB/T 20333-2015 Active 压水堆核电厂一回路安全降压和排气系统设计准则 Standard Type NB ICS N/A CCS N/A Status Active Issue Date 2015-04-02 Implementation 2015-09-01 Centralized Committee 能源 Issuing Authority 能源