HFC
noun [ U or C ] chemistry specialized uk/ˈeɪtʃefˌsiː/ us/ˈeɪtʃefˌsiː/
氢氟碳化合物（hydrofluorocarbon的缩写）
abbreviation for hydrofluorocarbon : a type of gas used especially in aerosols (= containers that force out liquids in very small drops)