DB缩写的意思

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