EF缩写的意思

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