PPI缩写的意思

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