NFM

abbr.Narrow-band Frequency Modulation 窄頻帶調(diào)制;

[例句]In recent years, N-formylmorpholine (?NFM) and its mixture are gradually used as solvent in industry to separate n-butene and butane by extractive?distillation.

近年來，利用N-甲酰嗎啉（NFM）及其混合溶劑萃取精餾分離正丁烯與丁烷的工藝逐漸得到工業(yè)應用。