Voltage reference apparatus, voltameter, battery voltage detection apparatus and wireless communication device.
电压参考装置，伏特表，电池电压检测装置和无线通信设备。
Type of circuit Breaker, pole number, rated current of tripping device, reference temperature of ambient air mode of connection, kind of accessories and their working voltage ratings.
断路器型号、级数、脱扣器额定电流、周围空气参考温度、接线方式、附件种类和附件额定工作电压。
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