AR缩写的意思

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