XT缩写的意思

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