SOS缩写的意思

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