English translation for "double current signal"

双流信号制

Similar Words：

"double current key" English translation, "double current method" English translation, "double current operation" English translation, "double current relay" English translation, "double current return to zero system" English translation, "double current signaling" English translation, "double current simplex" English translation, "double current sounder" English translation, "double current system" English translation, "double current telegraph" English translation