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一、引言国际单位制(SI)七个基本单位之一的基本电量单位是电流的单位安培。安培定义为一个与时间无关的直流量,它最易于保存和从中导出伏特(电压单位)和欧姆(电阻单位)的
I. INTRODUCTION The basic power unit of one of the seven basic units of the International System of Units (SI) is the current amperes per unit. Ampere, defined as a time-independent direct current, is the easiest to save and derive from volts (in volts) and ohms (in ohms)