MSA缩写的意思

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