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通道电阻包括闭合触点的电阻、印制板走线和输出连接器的电阻。
The channel resistance includes the resistance of the closed contact, the printed circuit traces, and the output connectors.
youdao
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无电压触点闭合，常开，8路输出。
Non-voltage contact closure, always open, 8 Output.
youdao
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无电压触点闭合，常开，8路输出。
Non-voltage contact closure, always open, 8 Output.
youdao