ET缩写的意思

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