PTA缩写的意思

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