对几种电压标准自校系统方法进行了分析探讨，并对它们逐个作了研究说明。
This paper analyzes some kinds of methods for voltage reference self-ca libration system and explains them one by one.
对几种电压标准自校系统方法进行了分析探讨，并对它们逐个作了研究说明。
This paper analyzes some kinds of methods for voltage reference self-ca libration system and explains them one by one.
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