English translation for "primary to secondary circuit"

初级中心局与二级局间中继电路

Similar Words：

"primary time switch" English translation, "primary tin" English translation, "primary tissue" English translation, "primary tissue culture" English translation, "primary to primary circuit" English translation, "primary token" English translation, "primary tower" English translation, "primary toxin" English translation, "primary tracer" English translation, "primary track" English translation