PT缩写的意思

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