永久虛電路
PVC n 1: a polymer of vinyl chloride used instead of rubber in electric cables [syn: {polyvinyl chloride}] 2: irregularity of cardiac rhythm; recurrent occurrences can be a precursor of ventricular fibrillation [syn: {premature ventricular contraction}]
PVC 1.{Permanent Virtual Circuit}. 2. {polyvinyl chloride}. (2001-03-26)