短語詞組短語power -spectrum computer 功率頻譜計(jì)算機(jī)power sound spectrum 聲功率譜cross power density spectrum 互功率密度譜wave power density spectrum 波能密度譜logarithmic power -spectrum 對數(shù)功率譜power clensity spectrum 功率譜密度power rate spectrum 功率譜Signal power density spectrum 信號功率密度譜power frequency spectrum 號功率譜;功率頻譜 返回 power spectrum