DDC缩写的意思

ETE AP ASI RIP NCBA DVVI NDS mcu CAI CPS EELS CRC CTDM AJG CPM SSM AFC APADAS DPON DTP GIMM DCT EF FCN MADP EWT IOB ppm APARS Bps DFSK STB DTD CSE DS SFB IS-IS IM GPS ABDL EEROM SOC ASC EFCI DVC CC ESC QDOS UMTS RAID GDPS DFOS FED DCN DL SSG S3 EAF CICS CNCC