CSD缩写的意思

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