FR缩写的意思

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