程控交換機 [ㄔㄥˊ ㄎㄨㄥˋ ㄐㄧㄠ ㄏㄨㄢˋ ㄐㄧ; cheng2 kong4 jiao1 huan4 ji1] electronic switching system (telecom.) stored program control exchange (SPC) ◄ ►