EF缩写的意思

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