DTT缩写的意思

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