Selector switch module output to be taken into consideration at the same time connected to the number of output points.

选择开关量输出模块时，还应考虑能同时接通的输出点数量。

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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。

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