振铃电路
ringing circuit
振铃
ringing
振铃断续器
ringing interrupter
振铃键
ringing key
有效电流
active current; effective current
语音电流
speech current
预传导电流
preconduction current
阈值电流
threshold current
原电流
primary current
约瑟夫逊电流
Josephson current
越前电流
leading current
运行电流
running current
运流电流
convection current
运用电流
operate current
杂散电流
stray current
杂散电流侵蚀
stray-current corrosion
杂音电流产生器
noise-current generator
载波电流
carrier current
载波电流通讯
carrier-current communication
在短路条件下通过断路器的电流
let-through current