PD缩写的意思

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