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。

youdao

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。

youdao