PCabbr.个人计算机(=personal computer)PCMabbr.零件与元件手册(=Parts and Components Manual)abbr.脉冲编码调制(=Pulse Code Modulation)PCVn.压力调节阀PCLabbr.Printer Control Language；打印机控制语言PCG=Phonocardiogram 心音图, (心脏)声电图PCEn.示温熔锥比值PCNU1-(2-chlocoethyl)-3-(2,6-dioxo-1-piperidyl)-nitrosoureaPCFLn.发动机低温流实验室PCFC太平洋板块PCNN脉冲耦合神经网络pcurpulsating current 脉冲电流； abbr.；=pulsating current 脉波电流