带电电路
alive circuit
alarm circuit
amplifier noise-equivalent circuit
alladvised
微带双通带带通滤波器
microstrip dual bandpass filters
复式幻通平衡电报电路
circuit
double phantom balanced telegraph
幻道电报电路
phantom telegraph circuit
幻象电报电路
phantom telegraphy circuit
双幻均衡电报电路
double phantom balanced telegraph circuit
双幻平衡电报电路
Double phantom balanced telagraph circuit
租用的电报电路
LSTC LeaSed Telegraph Circuit