略語大辞典 [L] 35 HHFW half height full width 半値(全)幅. レーザー光ビーム径などの表現.half height full width; or FWHM(full width at half maximum); e.g. an expression of a laser beam diameter; [L:Phys:Opt:Mes]. 丸善「略語大辞典」JLogosID : 11876893