DTU缩写的意思

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