GB/T 7676.3-2017直接作用模拟指示电测量仪表及其附件第3部分:功率表和无功功率表的特殊要求国家标准
英文:Direct acting indicating analogue electrical measuring instruments and their accessories—Part 3:Special requirements ...
英文:Direct acting indicating analogue electrical measuring instruments and their accessories—Part 3:Special requirements ...