词汇	upper lower lip
释义	upper lower lip 上唇
随便看	carrier recovery carrier recovery circuit carrier recovery time carrier reduced ssb carrier-reduced SSB carrier reduction carrier reference carrier reference black level carrier-reference black level carrier reference signal carrier reference white level carrier reference-white level carrier-reference white level carrier regeneration 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