AR缩写的意思

AC AHGOLEOD SR ETC TS FRS CFC TPES ESS IPCC OSUCFM API PEL APFTPOS ED DIL AT SBR APL EOC WBGT FFES WWTS LJ TSP APN MP THC OHS PER ASBL ES APC AFOC FFCS EGR DC DOW ARIS AR UKWAS PEFC IAQ ACODS RU FCLPRC PS RORSAT SM MPN AS CASS P.E.O. NFPARR NFAP EI SE EM LOI C&T