短語詞組短語power loss density 功率損失密度power -density distribution 功率密度分佈static power spectrum density 靜態(tài)功率譜Power Spectrum Density MASK 功率譜密度模板power spectral density PSD 功率譜密度displacement power spectral density 位移能譜密度noise power spectrum density 噪聲功率譜密度Power Spectrum Density Function 功率譜密度函數(shù)apparent power volume density [電]表觀功率躰積密度 返回 power density