P3缩写的意思

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