energy density spectrum 能量密度频谱 ; [物] 能量密度谱
cross-energy density spectrum [自] 互能密度谱
instantaneous energy density spectrum 瞬时能量谱密度
three dimensions energy density spectrum 三维能量密度谱
energy spectrum density 能量谱密度 ; 谱密度
energy spectrum density function 能谱密度函数
spectrum energy density 能量密度频谱
Physical meaning: the self-correlation function and the energy spectrum density function compose a Fourier transform pair.
物理含义：能量信号的自相关函数与能量谱密度函数构成傅立叶变换对。
Furthermore, the energy density spectrum for electromagnetic wave, Langmuir wave and ion acoustic wave are obtained and used to interpret spectra evolution with time.
研究了电磁波、朗缪尔波与离声波在相互作用中的能量密度谱随时间的演化；
Formulae of energy spectrum density of large wavenumber range in homogeneous isotropic turbulence are given here.
对均匀各向同性湍流提出一个能谱密度的计算公式。
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