词汇	barred obligation
释义	barred obligation 失去时效的义务
随便看	carrier registration carrier reinsertion carrier rejection filter carrier relaxation time carrier relay carrier relaying carrier relaying protection carrier-relaying protection carrier relaying system carrier remote-control amplifier carrier remote-control testing machine carrier repeater carrier repeater station carrier repeator Carrier Replacement Air Group Carrier Reserve Status carrier resetting device carrier residual modulation noise carrier resin carrier resistor carrier restorer carrier return carrier return character carrier return characterCRC carrier return lever