UM缩写的意思

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