从引发插件铅，反向极性保护。
反向极性保护防止了一对电源电压极性反转传感器的破坏。
The reverse polarity protection prevents destruction of the sensor by a reversal of the polarity of the voltage supply.
另一个优势是全球电子开关具有反向极性保护，以防止错接传感器损坏。
Another advantage the Global electronic switches possess is reverse polarity protection to prevent damage from miswiring the sensors.
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