通过引入了一对自共轭算符将涨落项满足的方程线性化，进而得出密度和相涨落所满足的方程。

By introducing a pair of self-conjugate operators, we may linearize the equation of fluctuation term., and get the equations of density and phase fluctuations.

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通过引入了一对自共轭算符将涨落项满足的方程线性化，进而得出密度和相涨落所满足的方程。

By introducing a pair of self-conjugate operators, we may linearize the equation of fluctuation term., and get the equations of density and phase fluctuations.

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