ECO缩写的意思

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