LD缩写的意思

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