DL缩写的意思

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