abbr. Noise Equivalent Flux Density 
声
量密度
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muramyldipeptide, Murbetex, Murbetol, Murchisoniacea, Murcott, murdabad, murder, murder mystery, murderee, murderer,
相似单词
NEFA, nefalon, nefandous, nefarious, nefariously, NEFD, nefedieffite, neferine, neflexine, NEFO,