All apparatus and reverse current relay and automatic control have been checked out.

所有的设备和反向电流继电器及其自动控制已检查完毕.

互联网

A semiconductor diode in which the reverse current varies with the intensity of received light.

反向电流随光的照射强度而发生变化的一种半导体二极管.

互联网

Compressor overloading protector, over charging relay low voltage switch, frost - preventive switch, reverse current switch.

压缩机超载保护、过电流保护 、 高低压开关、温度开关 、 防冻开关 、 逆相保护.

互联网