LS缩写的意思

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