ET缩写的意思

CMMCA EARL AMC AN APPLE BAAE AGLT AE IUS NSDA ADEP AOC AMPS ASD AAC ARM AH ANP HEAO LCS GLV SSC AAS PIA SPS Q SC AERO AMA CAA MUA ACP AVB ECSS EGS CSD RNC CCL PAM AWL JS CSA FAME LCFC IAS SV PAA ARM TPA CPM TAS CAR APJ AARS AVW CAA SMART ATDRSS MDA AAS