And the excitation voltage and output were also fed through the selector switch to the digital voltmeter. 其激励电压和输出也通过选择开关接到数字电压表上。
Considering the digital voltmeter as a part of the whole equipment, some methods for improving the stability of the digital voltmeter are suggested. 摘要从数字电压表是整机一部分的观点出发，提出一些从总体上考虑提高数字电压表稳定度的方法。
