OR缩写的意思

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