字典網>> 英漢字典>> S開頭詞條>>spectral density的意思 漢英字典spectral density中文翻譯：【電】 頻譜密度英文字典相關詞條：spectral reflection factor spectral line interference spectral ghosts spectral sensitivity spectral character spectral irradiation spectral directional reflectance factor spectral voltage density spectral width spectral phonocardiograph