# Dictionary:声波波动方程

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This page is a translated version of the page Dictionary:Acoustic wave equation and the translation is 100% complete.

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${\displaystyle {\frac {\partial ^{2}P}{dx^{2}}}=\left({\frac {\rho }{k}}\right){\frac {\partial ^{2}P}{\partial t^{2}}}}$

${\displaystyle {\frac {\partial ^{2}\rho }{dx^{2}}}=\left({\frac {\rho }{k}}\right){\frac {\partial ^{2}\rho }{\partial t^{2}}}}$