ssu缩写的意思

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