current sharing circuit
current-sharing interface circuit
analog circuit analysis by time-sharing system
alternation current circuit {= AC circuit}
earth circuit [= earth return circuit]
enlarged circuit and compensation circuit
single filip-flop circuit (sff circuit)
trip circuit and closing circuit
time-sharing resources， alloca-time-sharing roll-in， roll-out
time-sharing resources，alloca-time-sharing roll-in，roll-out
10 kV rural overhead line circuit
110 kV line control circuit
1100 kV SF6 circuit breaker