EL缩写的意思

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