S.缩写的意思

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