互功密度譜 cross power density spectrum: 互功率密度譜; 互功密度譜power density spectrum: 功率密度頻譜; 功率密度譜power spectrum density: 功率譜密度power spectrum density function: 功率譜密度函數(shù)psd,power spectrum density: 功率譜密度下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯