UN缩写的意思

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