FU缩写的意思

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