IEC 60027
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IEC 60027為国际电工委员会的电气技术用字母符号標準。分為以下幾個部份:
- IEC 60027-1: General 总则
- IEC 60027-2: Telecommunications and electronics 电信和电子学
- IEC 60027-3: Logarithmic and related quantities, and their units 对数量和单位
- IEC 60027-4: Symbols for quantities to be used for rotating electrical machines 旋转电机用量值符号
- IEC 60027-6: Control technology 控制技术
- IEC 60027-7: Physiological quantities and units