лінія симплексного зв'язку; ущільнений канал (лінія) зв'язку
simplex channel
simplex communication
circuit breaker / circuit-breaker
amplifier circuit
bombing circuit
circuit
circuit-closing device
communication circuit
demodulator circuit
dual-firing circuit
electric firing circuit
electrical circuit
intensity mine circuit
remote-controlled radio circuit
safety circuit
voice circuit
weapon control circuit
wire circuit detector
air circuit breaker
air-blast circuit breaker
automatic overload circuit breaker
back-up circuit breaker
buried conduit wire circuit
circuit breaker with overload trips
highspeed circuit breaker
loop circuit breaker
main circuit breaker panel
miniature circuit breaker
oil circuit breaker
power circuit breaker
solenoid-operated circuit breaker
closed-vent circuit