abbr. Foam Fire Extinguishing System 
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lactofarinaceous, lactoferrin, lactofil, lactoflavin, lactoflavin(e), lactogen, lactogenesis, lactogenic, lactoglobulin, lactoglucose,
相似单词
FFAG, FFAs, FFC, FFD, FFE, FFES, FFF, FFHC, FFI, FFL,