EL缩写的意思

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