【国外标准】 Indicating ammeters, voltmeters wattmeters, frequency and power-factor meters
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适用范围:
暂无
标准号:
BS 89:1929
标准名称:
Indicating ammeters, voltmeters wattmeters, frequency and power-factor meters
英文名称:
Indicating ammeters, voltmeters wattmeters, frequency and power-factor meters标准状态:
被代替-
发布日期:
1929-04-08 -
实施日期:
出版语种:
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