EWC缩写的意思

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