在极性电路中，空号脉冲促使环路电流向传号脉冲相反的方向流动。

In a polar circuit it causes the loop current to flow in a direction opposite to that for a mark impulse.

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为在这个环路您现在有一个属性的潜在电流。

For within this loop you now have an attribute of potential electric current.

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在信号传感器或信号转换器遇到接地的输入或输出信号时，电流环路信号隔离器减少现场测量难题。

DEVAR current loop signal isolators reduce problems found in field measurements when signal transmitters or converters encounter both input and output signals that may be grounded.

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