TTL缩写的意思

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