SE缩写的意思

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