English translation for "double current sounder"

双流音响器

Similar Words：

"double current relay" English translation, "double current return to zero system" English translation, "double current signal" English translation, "double current signaling" English translation, "double current simplex" English translation, "double current system" English translation, "double current telegraph" English translation, "double current transmission" English translation, "double current working" English translation, "double curvature" English translation