Home / Standards / GBT 2900.72-2008 GBT 2900.72-2008 Electrotechnical terminology—Polyphase systems and polyphase circuits 电工术语 多相系统与多相电路 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A